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Hepatitis B virus

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hepatitis B viral infection. However, due to the lengthy time interval, measured in weeks, between exposure of the causative agent and the development of illness prevented recognition of jaundice as an infectious disease until the 20th century. The first recorded cases of hepatitis B virus infection occurred in 1883 after the smallpox vaccine containing human lymph was administered to a group of people. The smallpox vaccine was administered to shipyard workers in Germany and the workers later developed symptoms of hepatitis. Serum hepatitis, now known as hepatitis B, was often observed following the use of contaminated needles and syringes. These contaminated needles and syringes were not properly cleaned and/or they were reused among patients. In 1943, transmission of hepatitis B virus via blood was further emphasized when Paul Beeson described jaundice occurring in patients who had just received blood transfusions. Another epidemic of jaundice was observed among soldiers in 1942, after they had received a yellow fever vaccine. The distinction between hepatitis A virus and hepatitis B virus was not determined until 1947 when they were recognized as being two different filterable agents through numerous studies done of human volunteers.
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more severe liver disease and increase the risk for primary liver cancer (Hepatocellular Carcinoma). Reporting of this co-infection may be underreported due to hepatitis C's ability to become the dominant liver virus during coinfection, reducing the detectable amount of HBV found in the body. Recent statistics show that 10% of all persons infected with HIV are also infected with Hepatitis B. However, this statistic increases to almost 20% for Southeast Asia. Hepatitis B infection is one of the leading causes of hospitalizations and death among patients with HIV since the development and use of antiretroviral therapies. Those who are infected with HIV and HBV are six times more likely to develop chronic hepatitis B. Some studies suggest this may be due to co-infected individuals having lower CD4+ T cell counts.
335:. These serotypes are based on a common determinant (a) and two mutually exclusive determinant pairs (d/y and w/r). The viral strains have also been divided into ten genotypes (A–J) and forty subgenotypes according to overall nucleotide sequence variation of the genome. The genotypes have a distinct geographical distribution and are used in tracing the evolution and transmission of the virus. Differences between genotypes affect the disease severity, course and likelihood of complications, and response to treatment. The serotypes and genotypes do not necessarily correspond. 1185:
individuals chronically infected with HBV worldwide, 50% or more of those individuals acquired the infection prenatally or during their early childhood. In countries where HBV is endemic, vertical transmission of HBV poses a major health risk due to a high number of women of childbearing age being HBeAg-positive allowing them to transmit HBV to their newborn. In areas where HBV is endemic, transmission is not limited to groups with high-risk behaviors. Instead, infection can occur through different routes of transmission but mostly during early childhood.
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occur. Incidences of HBV infection through HD units is at 1% in the United States. Healthcare staff are also at an increased risk of infection. Transmission of HBV can be limited by administering the hepatitis B vaccine. In areas where the virus is endemic, vaccines are limited, especially in rural areas where medical clinics are sparse.
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3.9 kb RNA initiates at the X gene promoter region and the transcript is polyadenylated only after the second round of transcription. Similar behavior is shared by other long pregenomic/pre-core (pg/pc) RNA species. Thus, the viral transcription machinery must ignore the poly(A) signal at the first transcription round.
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and later identified as the hepatitis B virus surface antigen HBsAg. This was one of the first breakthroughs in the effort to understand the pathology of viral hepatitis that instigated jaundice in those infected with HBV. It allowed industrialized countries to reliably diagnose asymptomatic carriers
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The origin of hepatitis B virus can be traced back to the 5th century BCE and is even mentioned in Babylonian clay tablets. Hippocrates later described an epidemic of jaundice among his patients that was characterized by the yellowing of the skin and whites of the eyes. Jaundice is a clinical sign of
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Rates of hepatitis B infection are equal across male and females. Hepatitis B virus is more prominently found in US citizens of Asian, Pacific Islander, or African descent and roughly 25% of these individuals will receive a diagnosis. HBV is spread more readily in groups with high risk behavior such
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is incorporated into the nucleocapsid along with the pre-genomic RNA (pgRNA). Inside the capsid, the pgRNA undergoes reverse transcription, making the (-) DNA strand. At the same time, most of the RNA template is degraded by the RNase activity of the polymerase. This is followed by (+) DNA strand
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Because HBV and HCV share a similar mode of transmission, co-infections are possible. Most cases of HBV and HCV co-infection occurs among Intravenous drug users, unscreened blood products, or exposure to dirty needles and unsterilized medical equipment. Co-infection of these two viruses can cause a
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Hepatitis B virus causes the disease hepatitis B. Hepatitis is considered to be the leading cause of liver cancer worldwide (reference). Hepatitis B virus can be found in almost every region of the world but is most prevalent in countries where the virus is endemic. HBV is endemic in some countries
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Today, hepatitis B virus infection is easily avoided by receiving one of the hepatitis B vaccines. The plasma-derived HepB vaccine was licensed in 1981 and was subsequently replaced in 1986 with the recombinant HepB vaccine. Engerix B was approved in 1989 and Heplisav-B was approved in 2017. All of
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ancestor and a subsequent coevolution with both birds and mammals after their divergence (>300M years ago). It has also been proposed that a New World bat hepadnavirus may be the origin of the primate hepadnaviruses. Avihepadnaviruses lack the X protein but a vestigial X reading frame is present
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The spread of hepatitis B virus occurs most often through vertical transmission from mother to child during birth and delivery. HBV can also be spread through contact with blood or other bodily fluids during sexual intercourse with an infected partner. It is also spread through needles shared with
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The spread of hepatitis B virus in the western world occurs most often through sexual intercourse or needle sharing by intravenous drug users (IVDU). IVDU show the highest rate of HBV infection in Europe and North America. There are also higher rates of hepatitis B infection among men who have sex
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The increase in ROS after HBV infection causes inflammation, which leads to a further increase in ROS. ROS cause more than 20 types of DNA damage. Oxidative DNA damage is mutagenic. In addition, repair of the DNA damage can cause epigenetic alterations at the site of the damage during repair of
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The function of the protein coded for by gene X is not fully understood, but some evidence suggests that it may function as a transcriptional transactivator. Interestingly, a 40 kDa X-Core fusion protein is encoded by a long viral 3.9-kb transcript, whose function remains unclear. Synthesis of the
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Furthermore, hepatitis B virus can also be spread through sharing earrings and other body piercing jewelry. It is also spread through hemodialysis units that have been used by HBeAg positive patients. Because HD units usually treat multiple patients at a time, contamination of patients' blood can
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Although HBV can be infectious on surfaces for up to seven days, it is not spread through breastfeeding, sharing eating utensils, hugging, kissing, holding hands, coughing, or sneezing. Unlike other hepatitis viruses, HBV is not spread by contaminated food or water. However, living with a person
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remains has allowed investigating the evolution of this virus in humans in more details. In 2021, a study reconstructed 137 ancient HBV genomes and proved the presence of the virus in humans since at least 10,000 years. The most recent common ancestor of all known human HBV lineages was dated to
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Approximately two billion people have been infected with HBV which means almost 1 out of 3 people have been infected. Every year an estimated 1.5 million people will become newly infected and roughly 10% of those individuals will go undiagnosed. Every year, an estimated 820,000 people die from
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subtypes F1, F2, and F3 are found in East and West Amerindians. Among South Amerindians only F3 was found. Subtypes Ia, III, and IV exhibit a restricted geographic distribution (Central America, the North and the South of South America respectively) while clades Ib and II are found in all the
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The spread of HBV during pregnancy remains the highest risk for developing chronic hepatitis B later in childhood. Roughly 90% of infected infants will become chronically infected. Only 2%-6% of adults once infected with HBV will go on to be chronically infected. Of the estimated 350 million
653:(cccDNA) template. Two enhancers designated enhancer I (EnhI) and enhancer II (EnhII) have been identified in the HBV genome. Both enhancers exhibit greater activity in cells of hepatic origin, and together they drive and regulate the expression of the complete viral transcripts. 665:
but contains three in frame "start" (ATG) codons that divide the gene into three sections, pre-S1, pre-S2, and S. Because of the multiple start codons, polypeptides of three different sizes called large (pre-S1 + pre-S2 + S), middle (pre-S2 + S), and small (S) are produced.
642:(viral DNA polymerase is used for a later stage) and removal of the viral polymerase protein (P) from the (−) sense strand and a short sequence of RNA from the (+) sense strand. Non-coding bases are removed from the ends of the (−)sense strand and the ends are rejoined. 549:
between 20,000 and 12,000 years ago. However, it cannot be said whether the virus was present in humans long before that or acquired shortly before from another animal species. The evolution of HBV in humans was shown to reflect known events of human history such as the
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Type C has two geographically subtypes: Cs (C1) in South-east Asia and Ce (C2) in East Asia. The C subtypes have been divided into five clades (C1–C5). A sixth clade (C6) has been described in the Philippines but only in one isolate to date. Type C1 is associated with
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The negative-sense, (non-coding) strand is complementary to the viral mRNA. The viral DNA is found in the nucleus soon after infection of the cell. The partially double-stranded DNA is rendered fully double-stranded by completion of the (+) sense strand by cellular
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Despite there being a vaccine to prevent hepatitis B, HBV remains a global health problem. Hepatitis B can be acute and later become chronic, leading to other diseases and health conditions. In addition to causing hepatitis, infection with HBV can lead to
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activity similar to retroviruses. The outer envelope contains embedded proteins which are involved in viral binding of, and entry into, susceptible cells. The virus is one of the smallest enveloped animal viruses with a virion diameter of 42 nm, but
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from which the pre-core protein is produced. HBeAg is produced by proteolytic processing of the pre-core protein. The DNA polymerase is encoded by gene P. Gene S is the gene that codes for the surface antigen (HBsAg). The HBsAg gene is one long
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cells. Many activities have been linked to expression of HBx. However, the molecular mechanisms of many of these activities are unknown. This protein is multifunctional and it activates cellular signaling pathways and is essential for viral
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Jaroszewicz J, Calle Serrano B, Wursthorn K, Deterding K, Schlue J, Raupach R, et al. (April 2010). "Hepatitis B surface antigen (HBsAg) levels in the natural history of hepatitis B virus (HBV)-infection: a European perspective".
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Genotypes differ by at least 8% of the sequence and have distinct geographical distributions and this has been associated with anthropological history. Within genotypes subtypes have been described: these differ by 4–8% of the genome.
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infected persons or exposure to sharp objects. Needles of any kind can be a risk if they are not single use or are not properly sanitized, preferably in an autoclave. This includes needles used at tattooing and body piercing parlors.
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Krause-Kyora, Ben; Susat, Julian; Key, Felix M; KĂŒhnert, Denise; Bosse, Esther; Immel, Alexander; Rinne, Christoph; Kornell, Sabin-Christin; Yepes, Diego; Franzenburg, Sören; Heyne, Henrike O (10 May 2018). Locarnini, Stephen (ed.).
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forms exist, including filamentous and spherical bodies lacking a core. These particles are not infectious and are composed of the lipid and protein that forms part of the surface of the virion, which is called the surface antigen
474:(hepatitis B envelope antigen) can be found between the icosahedral nucleocapsid core and the lipid envelope, but is considered "nonparticulate" and is secreted and accumulates in serum. HBeAg and HBcAg are made from the same 1558:
Ghosh S, Banerjee P, Deny P, Mondal RK, Nandi M, Roychoudhury A, et al. (March 2013). "New HBV subgenotype D9, a novel D/C recombinant, identified in patients with chronic HBeAg-negative infection in Eastern India".
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Kocher, Arthur; Papac, Luka; Barquera, Rodrigo; Key, Felix M.; Spyrou, Maria A.; HĂŒbler, Ron; Rohrlach, Adam B.; Aron, Franziska; Stahl, Raphaela; Wissgott, Antje; Bömmel, Florian van (8 October 2021).
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found in this population) that the ancestral virus originated in Asia about 2000 years ago (95% HPD 900 BC – 830 AD). Coalescence occurred about 1000 AD. This subgenotype spread from Asia initially to
926:. The core proteins dissociate from the partially double stranded viral DNA, which is then made fully double stranded (by host DNA polymerases) and transformed into covalently closed circular DNA ( 957:
These four viral transcripts undergo additional processing and go on to form progeny virions which are released from the cell or returned to the nucleus and re-cycled to produce even more copies.
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There are four known genes encoded by the genome called C, P, S, and X. The core protein is coded for by gene C (HBcAg), and its start codon is preceded by an upstream in-frame AUG start
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Cavinta L, Sun J, May A, Yin J, von Meltzer M, Radtke M, et al. (June 2009). "A new isolate of hepatitis B virus from the Philippines possibly representing a new subgenotype C6".
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shared by various bird species shows the presence of these virus in birds for at least 70M years. Although similar evidence is missing for mammals, the phylogenetic position of
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Hundie GB, Stalin Raj V, Gebre Michael D, Pas SD, Koopmans MP, Osterhaus AD, et al. (February 2017). "A novel hepatitis B virus subgenotype D10 circulating in Ethiopia".
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Because the virus multiplies via RNA made by a host enzyme, the viral genomic DNA has to be transferred to the cell nucleus. It is thought the capsid is transported on the
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Menéndez-Arias L, Álvarez M, Pacheco B (October 2014). "Nucleoside/nucleotide analog inhibitors of hepatitis B virus polymerase: mechanism of action and resistance".
7655: 2278:"Activation and inhibition of cellular calcium and tyrosine kinase signaling pathways identify targets of the HBx protein involved in hepatitis B virus replication" 1097:) in more than 20% of liver cancers, with seven of these genes being hypermethylated in more than 75% of liver cancers. In addition to alterations at the sites of 6221: 7668: 5493: 892:. The pre-S1 segment of the HBV L protein then binds tightly to the cell surface receptor sodium taurocholate cotransporting polypeptide (NTCP), encoded by the 1523:
Magnius LO, Norder H (1995). "Subtypes, genotypes and molecular epidemiology of the hepatitis B virus as reflected by sequence variability of the S-gene".
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Type B has two distinct geographical distributions: Bj/B1 ('j'—Japan) and Ba/B2 ('a'—Asia). Type Ba has been further subdivided into four clades (B2–B4).
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methylases and demethylases to change cell expression patterns. HBx is partly responsible for the approximate 10,000-fold increase in intracellular
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are also affected by the binding of HBx to their promoters. Each altered microRNA can affect the expression of several hundred messenger RNAs (see
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of hepatitis B virus and the discovery provided healthcare professionals a way to screen blood for Hep B before administering blood transfusions.
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synthesis, and the polymerase ends up covalently bound to the (-) DNA strand. The polymerase is discarded after the virion infects a new cell.
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Two further genotypes have since been recognised. The current (2014) listing now runs A through to J. Several subtypes are also recognised.
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The long mRNA is then transported back to the cytoplasm where the virion P protein synthesizes DNA via its reverse transcriptase activity.
5180: 3164:"The apical stem-loop of the hepatitis B virus encapsidation signal folds into a stable tri-loop with two underlying pyrimidine bulges" 6027: 3115:"The hepatitis B virus post-transcriptional regulatory element contains two conserved RNA stem-loops which are required for function" 7185: 7119: 6346: 5499: 5025: 4982: 1392:"Discovery of naturally occurring transmissible chronic hepatitis B virus infection among Macaca fascicularis from Mauritius Island" 5414: 4123:"Hepatitis B virus X protein-induced aberrant epigenetic modifications contributing to human hepatocellular carcinoma pathogenesis" 6813: 6481: 5485: 4888: 464: 58: 2229:"Hepatitis B virus replication is associated with an HBx-dependent mitochondrion-regulated increase in cytosolic calcium levels" 2108:"Persistence of hepatitis B virus covalently closed circular DNA in hepatocytes: molecular mechanisms and clinical significance" 317: 5084: 5070: 912:
Following endocytosis, the virus membrane fuses with the host cell's membrane, releasing the nucleocapsid into the cytoplasm.
80: 1604:"Bats carry pathogenic hepadnaviruses antigenically related to hepatitis B virus and capable of infecting human hepatocytes" 621:, but it is unusual because the DNA is not fully double-stranded. One end of the full length strand is linked to the viral 584:
A study of isolates from the circumpolar Arctic human population has proposed that the ancestor of the subgenotype B5 (the
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Ozen C, Yildiz G, Dagcan AT, Cevik D, Ors A, Keles U, et al. (May 2013). "Genetics and epigenetics of liver cancer".
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The largest mRNA, (which is longer than the viral genome), is used to make the new copies of the genome and to make the
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Several thousand protein-coding genes appear to have HBx-binding sites. In addition to protein coding genes, about 15
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Rasche A, Souza BF, Drexler JF (February 2016). "Bat hepadnaviruses and the origins of primate hepatitis B viruses".
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Garthwaite, Elizabeth; Reddy, Veena; Douthwaite, Sam; Lines, Simon; Tyerman, Kay; Eccles, James (28 October 2019).
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The E and F strains appear to have originated in aboriginal populations of Africa and the New World, respectively.
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with men (MSM). Risk of being infected with HBV increases with having multiple sex partners. (need reference)
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Type F which diverges from the other genomes by 14% is the most divergent type known. Type A is prevalent in
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Olinger CM, Jutavijittum P, HĂŒbschen JM, Yousukh A, Samountry B, Thammavong T, et al. (November 2008).
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The virus gains entry into the cell by binding to receptors on the surface of the cell and entering it by
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Type A has two subtypes: Aa (A1) in Africa/Asia and the Philippines and Ae (A2) in Europe/United States.
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still infect humans, while other became extinct. HBV strains found in African and South-East Asian apes (
261: 7524: 7415: 7295: 7167: 7027: 5593: 5174: 5044: 3904:"Occurrence, Biological Consequences, and Human Health Relevance of Oxidative Stress-Induced DNA Damage" 3754:"Solution structure of stem-loop alpha of the hepatitis B virus post-transcriptional regulatory element" 1106: 1102: 1054: 866: 394: 5015: 1041:(ROS) upon chronic HBV infection. Increased ROS can be caused, in part, by localization of HBx to the 516:
The early evolution of HBV, like that of all viruses, is difficult to establish. The identification of
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Edmunds, W. J.; Medley, G. F.; Nokes, D. J.; O'Callaghan, C. J.; Whittle, H. C.; Hall, A. J. (1996).
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Schwalbe M, OhlenschlÀger O, Marchanka A, Ramachandran R, HÀfner S, Heise T, Görlach M (March 2008).
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Lusida MI, Nugrahaputra VE, Handajani R, Nagano-Fujii M, Sasayama M, Utsumi T, Hotta H (July 2008).
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Guerrieri F, Belloni L, D'Andrea D, Pediconi N, Le Pera L, Testoni B, et al. (February 2017).
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Yan H, Liu Y, Sui J, Li W (September 2015). "NTCP opens the door for hepatitis B virus infection".
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Type F has been subdivided into 4 subtypes (F1–F4). F1 has been further divided into 1a and 1b. In
827: 581:) appear related to human HBV strains, which could reflect past cross-species transmission events. 4758:"Transmission of Hepatitis B Virus in Dialysis Units: A Systematic Review of Reports on Outbreaks" 4431: 4391:"Polymorphisms of the serum proteins and the development of iso-preciptins in transfused patients" 2705:
Paraskevis D, Magiorkinis G, Magiorkinis E, Ho SY, Belshaw R, Allain JP, Hatzakis A (March 2013).
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A possible new "I" genotype has been described, but acceptance of this notation is not universal.
7519: 7396: 5378: 5134: 4867: 4793: 4661: 4100: 3457: 3383: 2887:"Hepatitis B virus (HBV) promoters are regulated by the HBV enhancer in a tissue-specific manner" 2624: 2566: 2491: 1762: 1584: 1467: 1421: 1062: 662: 444: 4880: 3951:
Dizdaroglu M (December 2012). "Oxidatively induced DNA damage: mechanisms, repair and disease".
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MĂŒhlemann B, Jones TC, Damgaard PB, Allentoft ME, Shevnina I, Logvin A, et al. (May 2018).
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long (for the full length strand) and 1700–2800 nucleotides long (for the short length strand).
461:, but it is unknown whether HBcAg has to be in the capsid form to contribute to viral clearance. 7660: 4581: 2024:"A mutant hepatitis B virus core protein mimics inhibitors of icosahedral capsid self-assembly" 906:. The presence of NTCP in liver cells correlates with the tissue specificity of HBV infection. 7629: 6971: 6719: 6658: 5842: 5793: 5774: 5545: 5541: 5537: 5533: 5450: 5355: 5059: 4859: 4785: 4777: 4738: 4720: 4679: 4653: 4532: 4524: 4412: 4371: 4363: 4273: 4255: 4206: 4152: 4092: 4057: 4009: 3968: 3933: 3884: 3837: 3783: 3734: 3685: 3634: 3585: 3550: 3506: 3449: 3414: 3375: 3340: 3291: 3242: 3193: 3144: 3095: 3054: 3005: 2951: 2916: 2867: 2818: 2779: 2728: 2687: 2669: 2616: 2558: 2483: 2448: 2413: 2405: 2356: 2307: 2258: 2209: 2137: 2088: 2053: 2004: 1945: 1888: 1839: 1803: 1754: 1670: 1643: 1602:
Drexler JF, Geipel A, König A, Corman VM, van Riel D, Leijten LM, et al. (October 2013).
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alterations and mutations may cause defects in the cellular machinery that then contribute to
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Flodell S, Schleucher J, Cromsigt J, Ippel H, Kidd-Ljunggren K, Wijmenga S (November 2002).
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Lin B, Anderson DA (2000). "A vestigial X open reading frame in duck hepatitis B virus".
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Hassan MM, Li D, El-Deeb AS, Wolff RA, Bondy ML, Davila M, Abbruzzese JL (October 2008).
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long, nonstructural and has an important role in HBV-associated liver disease and in HBV
3605:"Hepatitis B Virus and Hepatitis D Virus Entry, Species Specificity, and Tissue Tropism" 2604: 2536: 2391: 2204: 2177: 1980: 1619: 1295: 753:; type E is localized in sub-Saharan Africa; type F (or H) is restricted to Central and 7537: 7420: 6965: 6790: 6685: 6291: 6211: 4977: 4757: 4733: 4698: 4674: 4633: 4407: 4390: 4309: 4250: 4225: 4201: 4174: 4147: 4122: 3928: 3903: 3832: 3805: 3778: 3753: 3729: 3704: 3680: 3653: 3629: 3604: 3501: 3476: 3371: 3358:
Palumbo E (2007). "Hepatitis B genotypes and response to antiviral therapy: a review".
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A number of as yet unclassified hepatitis B-like species have been isolated from bats.
249: 222: 165: 153: 4504: 3188: 3163: 3139: 3114: 3090: 3073: 3049: 3024: 2947: 2911: 2886: 2862: 2837: 2302: 2277: 1965:"Hepatitis B virus core antigen determines viral persistence in a C57BL/6 mouse model" 7690: 7486: 7137: 6598: 6235: 5952: 5927: 5923: 4972: 4967: 4915: 4520: 2570: 2293: 2194: 1883: 1858: 1766: 1588: 1572: 1425: 1066: 1011: 811: 770: 754: 585: 475: 313: 4871: 4797: 4553: 4359: 4344:"A historical perspective on the discovery and elucidation of the hepatitis B virus" 3581: 3461: 3387: 2853: 2798: 2628: 2495: 1471: 7634: 7206: 7158: 7110: 7062: 6983: 6768: 6604: 6281: 6090: 5957: 5931: 5833: 5683: 5361: 5222: 4104: 3919: 2814: 2374:
Suh, Alexander; Brosius, JĂŒrgen; Schmitz, JĂŒrgen; Kriegs, Jan Ole (30 April 2013).
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where HBx decreases the mitochondrial membrane potential. In addition, another HBV
1017:(ROS) after infection. HBx appears to dysregulate a number of cellular pathways. 923: 919: 386: 50: 5892: 4756:
Fabrizi, Fabrizio; Dixit, Vivek; Messa, Piergiorgio; Martin, Paul (January 2015).
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Block, Timothy M.; Alter, Harvey J.; London, W. Thomas; Bray, Mike (1 July 2016).
2902: 2376:"The genome of a Mesozoic paleovirus reveals the evolution of hepatitis B viruses" 2155: 1501: 861:
The life cycle of hepatitis B virus is complex. Hepatitis B is one of a few known
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in a wide range of vertebrates suggests a long coevolution. The identification of
3964: 2444: 2084: 1874: 17: 7614: 7546: 7089: 6409: 6372: 5873: 5822: 5810: 5805: 5798: 5786: 5781: 5760: 5730: 5632: 5471: 5383: 5366: 5301: 4962: 3620: 1798: 1781: 973: 903: 877: 823: 746: 738: 437: 383: 227: 31: 3477:"Novel subgenotypes of hepatitis B virus genotypes C and D in Papua, Indonesia" 1969:
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in the genome of duck hepadnavirus. The X protein may have evolved from a
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Co-infection of hepatitis B and various other viruses can also occur.
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Different genotypes may respond to treatment in different ways.
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It has also been suggested that it may increase the risk of
930:) that serves as a template for transcription of four viral 320:), suggesting an ancient origin for this virus in primates. 4554:"Hepatitis B | Disease Directory | Travelers' Health | CDC" 1177:
located in Asia, Africa, South America, and the Caribbean.
557:
in Europe. These studies also showed that some ancient HBV
4838:"Hepatitis B and human immunodeficiency virus coinfection" 4175:"Genome-wide identification of direct HBx genomic targets" 3213:"Possible new hepatitis B virus genotype, southeast Asia" 544:
Recently, the reconstruction of HBV genomes from ancient
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Viral infection by hepatitis B virus (HBV) causes many
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hepatitis B infection and related HBV complications.
1010:, and to indirect changes due to a large increase in 1155:
In 1964, the "Australian Antigen" was discovered by
592:
and then spread westward within the last 400 years.
508:
requires HBV envelope particles to become virulent.
7589: 7545: 7536: 7513: 7450: 7377: 7368: 7359: 7315: 7303: 7294: 7253: 7241: 7232: 7205: 7193: 7184: 7157: 7145: 7136: 7109: 7097: 7088: 7061: 7049: 7040: 7015: 6982: 6940: 6928: 6919: 6904: 6822: 6777: 6762: 6707: 6672: 6657: 6642: 6613: 6589: 6539: 6524: 6511: 6502: 6464: 6433: 6422: 6371: 6359: 6331: 6319: 6290: 6272: 6243: 6234: 6209: 6178: 6152: 6143: 6132: 6098: 6089: 6064: 6055: 6015: 5987: 5975: 5966: 5948: 5939: 5856: 5832: 5740: 5663: 5618: 5607: 5436: 5398: 5377: 5345: 5300: 5254: 5133: 5122: 5095: 4922: 3527:Zhang Z, Zehnder B, Damrau C, Urban S (July 2016). 1053:, also increases ROS through interactions with the 1021:causes dysregulation in part by binding to genomic 4121:Tian Y, Yang W, Song J, Wu Y, Ni B (August 2013). 745:; type D is common in the Mediterranean area, the 604:The genome organisation of HBV. The genes overlap. 4503:Piot, P.; Goilav, C.; Kegels, E. (1 March 1990). 4077:Nature Reviews. Gastroenterology & Hepatology 837:Type D has been divided into 7 subtypes (D1–D7). 226:family of viruses. This virus causes the disease 645:The viral genes are transcribed by the cellular 455:of the cell. HBcAg contributes to HBV clearance 4498: 4496: 3799: 3797: 2967: 2965: 1226:can all co-infect an individual alongside HBV. 4762:The International Journal of Artificial Organs 4576: 4574: 2521:"Ten millennia of hepatitis B virus evolution" 1669:(4th ed.). Univ of Texas Medical Branch. 1483: 1481: 1336: 1334: 1271:Molecular Virology of Human Pathogenic Viruses 5908: 4896: 1124:levels and gene expression. HBx also alters 8: 4168: 4166: 3804:Balakrishnan L, Milavetz B (November 2017). 3522: 3520: 1437: 1435: 1319: 1317: 1315: 1313: 374:. The virus particle, called Dane particle ( 3609:Cold Spring Harbor Perspectives in Medicine 3025:"The enigmatic X gene of hepatitis B virus" 3023:Bouchard MJ, Schneider RJ (December 2004). 7577: 7542: 7533: 7374: 7365: 7312: 7300: 7250: 7238: 7202: 7190: 7154: 7142: 7106: 7094: 7058: 7046: 6937: 6925: 6916: 6774: 6669: 6654: 6610: 6536: 6521: 6508: 6430: 6368: 6328: 6316: 6287: 6240: 6149: 6140: 6095: 6061: 5984: 5972: 5963: 5945: 5915: 5901: 5893: 5615: 5395: 5160:Progressive multifocal leukoencephalopathy 5130: 4903: 4889: 4881: 3858:Higgs MR, Chouteau P, Lerat H (May 2014). 3703:Hu, J.; Protzer, U.; Siddiqui, A. (2019). 3403:"Hepatitis B virus genotypes: an overview" 1863:Microbiology and Molecular Biology Reviews 826:. A further subtype has been described in 765:. Genotypes A, D and F are predominant in 451:. Capsid formation is the main factor for 253:family, which contains four other genera, 49: 38: 7072:Parainfluenza hemagglutinin-neuraminidase 5031:Extranodal NK/T-cell lymphoma, nasal type 4853: 4732: 4714: 4673: 4406: 4249: 4200: 4190: 4146: 4051: 4003: 3927: 3878: 3831: 3821: 3777: 3728: 3679: 3669: 3628: 3544: 3500: 3334: 3285: 3236: 3187: 3138: 3089: 3048: 2999: 2989: 2910: 2885:Antonucci TK, Rutter WJ (February 1989). 2861: 2773: 2763: 2722: 2681: 2663: 2552: 2399: 2350: 2301: 2252: 2203: 2193: 2131: 2047: 1998: 1988: 1939: 1882: 1797: 1740: 1637: 1627: 1407: 1366: 773:with frequencies dependent on ethnicity. 3853: 3851: 3072:Doitsh, Gilad; Shaul, Yosef (May 2003). 1390:Dupinay T, et al. (November 2013). 1222:(a satellite virus of hepatitis B), and 1077:than mutations. Only one or two genes, 532:suggests a presence of the virus in the 327:(adr, adw, ayr, ayw) based on antigenic 4116: 4114: 4025: 4023: 1261: 1120:, to specific gene loci to alter their 432:(hepatitis B core antigen) is the main 4548: 4546: 4337: 4335: 4333: 4331: 4304: 4302: 4300: 4298: 4296: 4294: 1164:which provide protection against HBV. 1105:are also caused by HBx recruiting the 869:as a part of its replication process. 27:Species of the genus Orthohepadnavirus 7216:Respiratory syncytial virus G protein 2640: 2638: 2582: 2580: 2513: 2511: 2509: 2507: 2505: 1210:Co-infection of HBV and other viruses 323:The virus is divided into four major 7: 4226:"Hepatitis B: The virus and disease" 1273:. Academic Press. pp. 247–260. 898:gene. NTCP is mostly found in the 687:HBV RNA encapsidation signal epsilon 553:during the late Pleistocene and the 5181:Subacute sclerosing panencephalitis 3603:Watashi K, Wakita T (August 2015). 2836:Doitsh G, Shaul Y (February 2004). 3372:10.1097/01.pap.0000249927.67907.eb 3041:10.1128/JVI.78.23.12725-12734.2004 2112:Emerging Microbes & Infections 2106:Yang HC, Kao JH (September 2014). 1665:. In Baron S; et al. (eds.). 1085:, are mutated in more than 20% of 741:. Type B and C are predominant in 522:endogenous hepadnaviridae elements 363:The structure of hepatitis B virus 25: 7120:Mumps hemagglutinin-neuraminidase 5500:Severe acute respiratory syndrome 5026:Follicular dendritic cell sarcoma 3658:World Journal of Gastroenterology 3654:"Hepatitis B virus morphogenesis" 2978:World Journal of Gastroenterology 2972:Beck J, Nassal M (January 2007). 1857:Seeger C, Mason WS (March 2000). 1128:that can affect gene expression. 210:) is a partially double-stranded 6482:Hepatitis B virus DNA polymerase 5486:Middle East respiratory syndrome 3481:Journal of Clinical Microbiology 3360:American Journal of Therapeutics 2294:10.1128/JVI.77.14.7713-7719.2003 2195:10.1111/j.1349-7006.2006.00299.x 1573:10.1111/j.1365-2893.2012.01655.x 714:There are at least 24 subtypes. 465:Hepatitis B virus DNA polymerase 338:Genotype D has 10 subgenotypes. 79: 59:Transmission electron microscopy 6313:(non-enveloped circular ds-DNA) 4476:"Hepatitis B Facts and Figures" 4360:10.1016/j.antiviral.2016.04.012 3908:Chemical Research in Toxicology 3867:The Journal of General Virology 3582:10.1016/j.antiviral.2015.06.002 2974:"Hepatitis B virus replication" 2854:10.1128/mcb.24.4.1799-1808.2004 2797:Kay A, Zoulim F (August 2007). 1786:The Journal of General Virology 1782:"The biology of hepadnaviruses" 1663:"Chapter 70: Hepatitis Viruses" 769:and all genotypes occur in the 318:woolly monkey hepatitis B virus 5085:Adult T-cell leukemia/lymphoma 5071:Splenic marginal zone lymphoma 4127:Molecular and Cellular Biology 3920:10.1021/acs.chemrestox.6b00265 2842:Molecular and Cellular Biology 2815:10.1016/j.virusres.2007.02.021 2156:"TSRI - News and Publications" 651:covalently closed circular DNA 551:first peopling of the Americas 1: 7333:Vesiculovirus matrix proteins 4310:"Pinkbook: Hepatitis B | CDC" 3091:10.1016/S0042-6822(03)00156-9 2948:10.1016/s0168-8278(05)80419-2 2903:10.1128/JVI.63.2.579-583.1989 1502:10.1016/j.vaccine.2004.10.045 857:Hepatitis B virus replication 5290:Tropical spastic paraparesis 5195:Lymphocytic choriomeningitis 4521:10.1016/0264-410X(90)90215-8 3965:10.1016/j.canlet.2012.01.016 3217:Emerging Infectious Diseases 2445:10.1016/j.coviro.2016.01.015 2085:10.1016/j.coviro.2014.04.005 1875:10.1128/mmbr.64.1.51-68.2000 1667:Baron's Medical Microbiology 1347:Journal of Clinical Oncology 1325:"ICTV Report Hepadnaviridae" 890:heparin sulfate proteoglycan 7370:Structure and genome of HIV 6427:(circular partially ds-DNA) 5653:Cytomegalovirus esophagitis 5573:Human parainfluenza viruses 5246:Ramsay Hunt syndrome type 2 4836:Thio, Chloe L. (May 2009). 4274:"VA.gov | Veterans Affairs" 4224:Liang, T. Jake (May 2009). 3621:10.1101/cshperspect.a021378 3434:Journal of Medical Virology 2433:Current Opinion in Virology 2073:Current Opinion in Virology 1859:"Hepatitis B virus biology" 1799:10.1099/0022-1317-67-7-1215 1294:Hunt R (21 November 2007). 757:. Type G has been found in 649:in the cell nucleus from a 617:of HBV is made of circular 241:is classified in the genus 7718: 6003:Herpesvirus glycoprotein B 4638:Epidemiology and Infection 3986:Nishida N, Kudo M (2013). 1836:10.1016/j.jhep.2010.01.014 1561:Journal of Viral Hepatitis 1444:Journal of Viral Hepatitis 971: 625:. The genome is 3020–3320 29: 5998:HHV capsid portal protein 5317:Cytomegalovirus retinitis 4716:10.1186/s12882-019-1529-1 4650:10.1017/S0950268800001497 4192:10.1186/s12864-017-3561-5 4044:10.1016/j.nbt.2013.01.007 2613:10.1038/s41586-018-0097-z 1729:Seminars in Liver Disease 1091:hypermethylated promoters 1089:while 41 genes each have 888:. HBV initially binds to 214:, a species of the genus 74: 57: 48: 41: 5419:Infectious mononucleosis 5236:Chandipura vesiculovirus 5066:Hepatocellular carcinoma 5011:Nasopharyngeal carcinoma 4944:Hepatocellular carcinoma 4389:Blumberg, B. S. (1964). 3652:Bruss V (January 2007). 3327:10.1128/genomeA.01075-14 1359:10.1200/JCO.2008.17.3526 985:hepatocellular carcinoma 378:), consists of an outer 6993:Influenza hemagglutinin 5215:Encephalitis lethargica 4916:viral systemic diseases 4089:10.1038/nrgastro.2014.6 3546:10.1002/1873-3468.12202 2545:10.1126/science.abi5658 1990:10.1073/pnas.1004762107 1780:Howard CR (July 1986). 1629:10.1073/pnas.1308049110 1039:reactive oxygen species 1033:, and cooperating with 1015:reactive oxygen species 443:and it has function in 7555:Gag-onc fusion protein 5587:Human orthopneumovirus 5241:Herpesviral meningitis 5202:Arbovirus encephalitis 3880:10.1099/vir.0.059485-0 3758:Nucleic Acids Research 3229:10.3201/eid1411.080437 3168:Nucleic Acids Research 3131:10.1093/nar/26.21.4818 3119:Nucleic Acids Research 1103:epigenetic alterations 858: 701:There are eight known 605: 364: 7525:murine leukemia virus 7416:Reverse transcriptase 7296:Indiana vesiculovirus 7168:Measles hemagglutinin 5045:Merkel-cell carcinoma 3671:10.3748/wjg.v13.i1.65 2991:10.3748/wjg.v13.i1.48 2936:Journal of Hepatology 2380:Nature Communications 1824:Journal of Hepatology 1751:10.1055/s-2004-828672 1661:Zuckerman AJ (1996). 1107:DNA methyltransferase 1055:endoplasmic reticulum 944:core protein and the 867:reverse transcription 856: 705:labeled A through H. 603: 528:as a sister clade to 422:(hepatitis B surface 395:reverse transcriptase 362: 30:For the disease, see 6256:Early 35 kDa protein 5690:Adenovirus infection 5154:Human polyomavirus 2 4983:Oropharyngeal cancer 4774:10.5301/ijao.5000376 4278:www.hepatitis.va.gov 4139:10.1128/MCB.00205-13 3721:10.1128/JVI.01032-19 3493:10.1128/JCM.01681-07 3315:Genome Announcements 3278:10.1128/JVI.00793-08 2343:10.1128/JVI.00561-08 2245:10.1128/JVI.00740-07 1932:10.1128/JVI.00608-12 1245:Nucleoside analogues 1137:Long non-coding RNAs 1029:protein to activate 946:viral RNA-dependent- 721:Individual genotypes 555:Neolithic transition 342:Unclassified species 220:and a member of the 76:Virus classification 5276:Post-polio syndrome 4912:Infectious diseases 4613:. 23 September 2021 4316:. 22 September 2022 3709:Journal of Virology 3266:Journal of Virology 3029:Journal of Virology 2891:Journal of Virology 2665:10.7554/eLife.36666 2605:2018Natur.557..418M 2537:2021Sci...374..182K 2392:2013NatCo...4.1791S 2331:Journal of Virology 2282:Journal of Virology 2233:Journal of Virology 2124:10.1038/emi.2014.64 1981:2010PNAS..107.9340L 1920:Journal of Virology 1698:"WHO | Hepatitis B" 1620:2013PNAS..11016151D 1296:"Hepatitis viruses" 1240:Hepatitis B vaccine 1126:histone acetylation 900:sinusoidal membrane 880:mediated by either 526:orthohepadnaviruses 372:Hepadnavirus family 370:is a member of the 262:Herpetohepadnavirus 7520:Rous sarcoma virus 5409:Epstein–Barr virus 5379:Respiratory system 5016:Burkitt's lymphoma 4348:Antiviral Research 3992:Digestive Diseases 3873:(Pt 5): 991–1004. 3770:10.1093/nar/gkn006 3570:Antiviral Research 3180:10.1093/nar/gkf603 2942:(Suppl 3): S20-3. 2765:10.7717/peerj.3757 2401:10.1038/ncomms2798 1914:(September 2012). 865:viruses which use 859: 822:; and C5 with the 663:open reading frame 606: 434:structural protein 365: 7697:Hepatitis B virus 7684: 7683: 7621:Hepatitis B virus 7591:Hepatitis B virus 7583:Taxon identifiers 7574: 7573: 7570: 7569: 7566: 7565: 7562: 7561: 7509: 7508: 7355: 7354: 7351: 7350: 7347: 7346: 7343: 7342: 7290: 7289: 7286: 7285: 7228: 7227: 7224: 7223: 7180: 7179: 7176: 7175: 7132: 7131: 7128: 7127: 7084: 7083: 7080: 7079: 7036: 7035: 7011: 7010: 6900: 6899: 6896: 6895: 6758: 6757: 6638: 6637: 6634: 6633: 6585: 6584: 6498: 6497: 6494: 6493: 6490: 6489: 6418: 6417: 6405: 6404: 6355: 6354: 6268: 6267: 6264: 6263: 6230: 6229: 6128: 6127: 6124: 6123: 6085: 6084: 6051: 6050: 6011: 6010: 5890: 5889: 5852: 5851: 5603: 5602: 5534:Influenza virus A 5451:Human coronavirus 5341: 5340: 5331:Herpes of the eye 4855:10.1002/hep.22883 4848:(S5): S138–S145. 4395:Bull N Y Acad Med 4242:10.1002/hep.22881 4032:New Biotechnology 4005:10.1159/000355243 3914:(12): 2008–2039. 3446:10.1002/jmv.21475 2724:10.1002/hep.26079 2599:(7705): 418–423. 2531:(6564): 182–188. 2480:10.1159/000025037 2040:10.1021/bi801814y 1735:(Suppl 1): 3–10. 1676:978-0-9631172-1-2 1537:10.1159/000150411 1456:10.1111/jvh.12631 1409:10.1002/hep.26428 1280:978-0-12-800838-6 992:pancreatic cancer 647:RNA polymerase II 530:avihepadnaviruses 506:Hepatitis D virus 389:core composed of 368:Hepatitis B virus 333:envelope proteins 307:Old World monkeys 244:Orthohepadnavirus 239:Hepatitis B virus 217:Orthohepadnavirus 203:Hepatitis B virus 199: 198: 192:Hepatitis B virus 179:Orthohepadnavirus 66:Hepatitis B virus 43:Hepatitis B virus 18:Hepatitis b virus 16:(Redirected from 7709: 7677: 7676: 7664: 7663: 7651: 7650: 7638: 7637: 7625: 7624: 7623: 7610: 7609: 7608: 7578: 7543: 7534: 7375: 7366: 7313: 7301: 7251: 7239: 7234:Zaire ebolavirus 7203: 7191: 7155: 7143: 7107: 7095: 7059: 7047: 6938: 6926: 6917: 6840:3C-like protease 6775: 6670: 6655: 6611: 6537: 6531:Duplornaviricota 6522: 6509: 6431: 6369: 6329: 6317: 6288: 6241: 6150: 6141: 6096: 6062: 5985: 5973: 5964: 5946: 5917: 5910: 5903: 5894: 5616: 5611:digestive system 5528:Orthomyxoviridae 5494:SARS coronavirus 5480:MERS coronavirus 5396: 5208:Orthomyxoviridae 5131: 5097:Immune disorders 5021:Hodgkin lymphoma 4997:Kaposi's sarcoma 4905: 4898: 4891: 4882: 4876: 4875: 4857: 4833: 4827: 4826: 4824: 4822: 4808: 4802: 4801: 4753: 4747: 4746: 4736: 4718: 4694: 4688: 4687: 4677: 4629: 4623: 4622: 4620: 4618: 4603: 4597: 4596: 4594: 4592: 4578: 4569: 4568: 4566: 4564: 4550: 4541: 4540: 4500: 4491: 4490: 4488: 4486: 4472: 4466: 4465: 4463: 4461: 4446: 4440: 4439: 4427: 4421: 4420: 4410: 4386: 4380: 4379: 4339: 4326: 4325: 4323: 4321: 4306: 4289: 4288: 4286: 4284: 4270: 4264: 4263: 4253: 4221: 4215: 4214: 4204: 4194: 4170: 4161: 4160: 4150: 4118: 4109: 4108: 4072: 4066: 4065: 4055: 4027: 4018: 4017: 4007: 3983: 3977: 3976: 3948: 3942: 3941: 3931: 3899: 3893: 3892: 3882: 3864: 3855: 3846: 3845: 3835: 3825: 3823:10.3390/v9110346 3801: 3792: 3791: 3781: 3749: 3743: 3742: 3732: 3700: 3694: 3693: 3683: 3673: 3649: 3643: 3642: 3632: 3600: 3594: 3593: 3565: 3559: 3558: 3548: 3524: 3515: 3514: 3504: 3472: 3466: 3465: 3429: 3423: 3422: 3398: 3392: 3391: 3355: 3349: 3348: 3338: 3321:(5): e01075–14. 3306: 3300: 3299: 3289: 3257: 3251: 3250: 3240: 3208: 3202: 3201: 3191: 3159: 3153: 3152: 3142: 3110: 3104: 3103: 3093: 3069: 3063: 3062: 3052: 3035:(23): 12725–34. 3020: 3014: 3013: 3003: 2993: 2969: 2960: 2959: 2931: 2925: 2924: 2914: 2882: 2876: 2875: 2865: 2833: 2827: 2826: 2794: 2788: 2787: 2777: 2767: 2743: 2737: 2736: 2726: 2702: 2696: 2695: 2685: 2667: 2642: 2633: 2632: 2584: 2575: 2574: 2556: 2515: 2500: 2499: 2463: 2457: 2456: 2428: 2422: 2421: 2403: 2371: 2365: 2364: 2354: 2322: 2316: 2315: 2305: 2273: 2267: 2266: 2256: 2224: 2218: 2217: 2207: 2197: 2173: 2167: 2166: 2164: 2162: 2152: 2146: 2145: 2135: 2103: 2097: 2096: 2068: 2062: 2061: 2051: 2019: 2013: 2012: 2002: 1992: 1960: 1954: 1953: 1943: 1903: 1897: 1896: 1886: 1854: 1848: 1847: 1818: 1812: 1811: 1801: 1777: 1771: 1770: 1744: 1724: 1718: 1717: 1715: 1713: 1704:. Archived from 1694: 1688: 1687: 1685: 1683: 1658: 1652: 1651: 1641: 1631: 1599: 1593: 1592: 1555: 1549: 1548: 1520: 1514: 1513: 1485: 1476: 1475: 1439: 1430: 1429: 1411: 1402:(5): 1610–1620. 1387: 1381: 1380: 1370: 1338: 1329: 1328: 1321: 1308: 1307: 1305: 1303: 1291: 1285: 1284: 1266: 998:Roles in disease 737:, including the 415:It consists of: 382:envelope and an 274:Parahepadnavirus 268:Metahepadnavirus 84: 83: 53: 39: 21: 7717: 7716: 7712: 7711: 7710: 7708: 7707: 7706: 7687: 7686: 7685: 7680: 7672: 7667: 7659: 7654: 7646: 7641: 7633: 7628: 7619: 7618: 7613: 7604: 7603: 7598: 7585: 7575: 7558: 7505: 7464:transactivators 7446: 7339: 7282: 7220: 7172: 7124: 7076: 7032: 7007: 6978: 6921:Influenza virus 6911:Negarnaviricota 6908: 6906: 6892: 6818: 6766: 6754: 6703: 6664:Kitrinoviricota 6661: 6646: 6644: 6630: 6602: 6581: 6528: 6513: 6486: 6460: 6426: 6414: 6401: 6351: 6312: 6294: 6280: 6274: 6260: 6226: 6205: 6174: 6136: 6135:(Duplodnaviria, 6134: 6133:circular ds-DNA 6120: 6081: 6047: 6007: 5956: 5950: 5935: 5921: 5891: 5886: 5848: 5828: 5736: 5710:Gastroenteritis 5668: 5665:Gastroenteritis 5659: 5647:Cytomegalovirus 5610: 5599: 5567:Paramyxoviridae 5556:Avian influenza 5432: 5427:Cytomegalovirus 5391:viral pneumonia 5389: 5386:nasopharyngitis 5385: 5382: 5373: 5337: 5311:Cytomegalovirus 5296: 5250: 5138: 5125: 5118: 5091: 4958:Cervical cancer 4918: 4909: 4879: 4835: 4834: 4830: 4820: 4818: 4810: 4809: 4805: 4755: 4754: 4750: 4696: 4695: 4691: 4631: 4630: 4626: 4616: 4614: 4605: 4604: 4600: 4590: 4588: 4580: 4579: 4572: 4562: 4560: 4552: 4551: 4544: 4502: 4501: 4494: 4484: 4482: 4474: 4473: 4469: 4459: 4457: 4448: 4447: 4443: 4429: 4428: 4424: 4388: 4387: 4383: 4341: 4340: 4329: 4319: 4317: 4308: 4307: 4292: 4282: 4280: 4272: 4271: 4267: 4236:(S5): S13–S21. 4223: 4222: 4218: 4172: 4171: 4164: 4120: 4119: 4112: 4074: 4073: 4069: 4029: 4028: 4021: 3998:(5–6): 447–53. 3985: 3984: 3980: 3950: 3949: 3945: 3901: 3900: 3896: 3862: 3857: 3856: 3849: 3803: 3802: 3795: 3751: 3750: 3746: 3702: 3701: 3697: 3651: 3650: 3646: 3602: 3601: 3597: 3567: 3566: 3562: 3539:(13): 1915–26. 3526: 3525: 3518: 3474: 3473: 3469: 3431: 3430: 3426: 3400: 3399: 3395: 3357: 3356: 3352: 3308: 3307: 3303: 3259: 3258: 3254: 3223:(11): 1777–80. 3210: 3209: 3205: 3174:(21): 4803–11. 3161: 3160: 3156: 3125:(21): 4818–27. 3112: 3111: 3107: 3071: 3070: 3066: 3022: 3021: 3017: 2971: 2970: 2963: 2933: 2932: 2928: 2884: 2883: 2879: 2848:(4): 1799–808. 2835: 2834: 2830: 2796: 2795: 2791: 2745: 2744: 2740: 2704: 2703: 2699: 2644: 2643: 2636: 2586: 2585: 2578: 2517: 2516: 2503: 2465: 2464: 2460: 2430: 2429: 2425: 2373: 2372: 2368: 2324: 2323: 2319: 2275: 2274: 2270: 2239:(21): 12061–5. 2226: 2225: 2221: 2175: 2174: 2170: 2160: 2158: 2154: 2153: 2149: 2105: 2104: 2100: 2070: 2069: 2065: 2021: 2020: 2016: 1962: 1961: 1957: 1926:(17): 9266–73. 1906:Lin YJ, Wu HL, 1905: 1904: 1900: 1856: 1855: 1851: 1820: 1819: 1815: 1779: 1778: 1774: 1742:10.1.1.618.7033 1726: 1725: 1721: 1711: 1709: 1708:on 10 July 2015 1696: 1695: 1691: 1681: 1679: 1677: 1660: 1659: 1655: 1614:(40): 16151–6. 1601: 1600: 1596: 1557: 1556: 1552: 1522: 1521: 1517: 1496:(19): 2409–23. 1487: 1486: 1479: 1441: 1440: 1433: 1389: 1388: 1384: 1353:(28): 4557–62. 1340: 1339: 1332: 1323: 1322: 1311: 1301: 1299: 1293: 1292: 1288: 1281: 1269:Ryu WS (2017). 1268: 1267: 1263: 1259: 1236: 1212: 1195: 1170: 1149: 1095:gene expression 1000: 976: 970: 851: 810:; type C3 with 798:; type C2 with 735:South-east Asia 695: 640:DNA polymerases 635: 611: 598: 539:DNA glycosylase 514: 413: 357: 352: 344: 331:present on its 256:Avihepadnavirus 236: 195: 143:Revtraviricetes 78: 35: 28: 23: 22: 15: 12: 11: 5: 7715: 7713: 7705: 7704: 7702:Hepadnaviridae 7699: 7689: 7688: 7682: 7681: 7679: 7678: 7665: 7652: 7639: 7626: 7611: 7595: 7593: 7587: 7586: 7581: 7572: 7571: 7568: 7567: 7564: 7563: 7560: 7559: 7557: 7552: 7550: 7540: 7538:Fusion protein 7531: 7530: 7529: 7528: 7527: 7522: 7511: 7510: 7507: 7506: 7504: 7503: 7494: 7489: 7484: 7483: 7482: 7477: 7472: 7459: 7457: 7448: 7447: 7445: 7444: 7443: 7442: 7437: 7425: 7424: 7423: 7421:HIV-1 protease 7418: 7413: 7401: 7400: 7399: 7386: 7384: 7372: 7363: 7357: 7356: 7353: 7352: 7349: 7348: 7345: 7344: 7341: 7340: 7338: 7337: 7336: 7335: 7327:matrix protein 7322: 7320: 7310: 7298: 7292: 7291: 7288: 7287: 7284: 7283: 7281: 7280: 7279: 7278: 7273: 7265:matrix protein 7260: 7258: 7248: 7236: 7230: 7229: 7226: 7225: 7222: 7221: 7219: 7218: 7212: 7210: 7200: 7188: 7182: 7181: 7178: 7177: 7174: 7173: 7171: 7170: 7164: 7162: 7152: 7140: 7134: 7133: 7130: 7129: 7126: 7125: 7123: 7122: 7116: 7114: 7104: 7092: 7086: 7085: 7082: 7081: 7078: 7077: 7075: 7074: 7068: 7066: 7056: 7044: 7038: 7037: 7034: 7033: 7031: 7030: 7024: 7022: 7013: 7012: 7009: 7008: 7006: 7005: 7000: 6995: 6989: 6987: 6980: 6979: 6977: 6976: 6975: 6974: 6966:viral envelope 6962: 6961: 6960: 6952:matrix protein 6947: 6945: 6935: 6923: 6914: 6907:negative-sense 6902: 6901: 6898: 6897: 6894: 6893: 6891: 6890: 6885: 6880: 6875: 6870: 6865: 6860: 6855: 6850: 6845: 6844: 6843: 6831: 6829: 6820: 6819: 6817: 6816: 6811: 6810: 6809: 6804: 6799: 6791:viral envelope 6786: 6784: 6772: 6760: 6759: 6756: 6755: 6753: 6752: 6747: 6742: 6737: 6732: 6727: 6722: 6716: 6714: 6705: 6704: 6702: 6701: 6700: 6699: 6694: 6686:viral envelope 6681: 6679: 6667: 6652: 6645:positive-sense 6640: 6639: 6636: 6635: 6632: 6631: 6629: 6628: 6622: 6620: 6608: 6587: 6586: 6583: 6582: 6580: 6579: 6574: 6569: 6564: 6559: 6554: 6548: 6546: 6534: 6519: 6506: 6500: 6499: 6496: 6495: 6492: 6491: 6488: 6487: 6485: 6484: 6479: 6473: 6471: 6462: 6461: 6459: 6458: 6457: 6447: 6442: 6440: 6428: 6420: 6419: 6416: 6415: 6413: 6412: 6406: 6403: 6402: 6400: 6399: 6389: 6384: 6378: 6376: 6366: 6357: 6356: 6353: 6352: 6350: 6349: 6344: 6338: 6336: 6326: 6314: 6292:Polyomaviridae 6285: 6270: 6269: 6266: 6265: 6262: 6261: 6259: 6258: 6252: 6250: 6238: 6232: 6231: 6228: 6227: 6225: 6224: 6218: 6216: 6207: 6206: 6204: 6203: 6198: 6193: 6187: 6185: 6176: 6175: 6173: 6172: 6167: 6161: 6159: 6147: 6138: 6137:Varidnaviria?) 6130: 6129: 6126: 6125: 6122: 6121: 6119: 6118: 6113: 6107: 6105: 6093: 6087: 6086: 6083: 6082: 6080: 6079: 6073: 6071: 6059: 6053: 6052: 6049: 6048: 6046: 6045: 6040: 6035: 6030: 6024: 6022: 6013: 6012: 6009: 6008: 6006: 6005: 6000: 5994: 5992: 5982: 5970: 5968:Herpes simplex 5961: 5943: 5937: 5936: 5924:Viral proteins 5922: 5920: 5919: 5912: 5905: 5897: 5888: 5887: 5885: 5884: 5883: 5882: 5870: 5862: 5860: 5854: 5853: 5850: 5849: 5847: 5846: 5838: 5836: 5830: 5829: 5827: 5826: 5814: 5802: 5790: 5778: 5771: 5765: 5764: 5752: 5746: 5744: 5738: 5737: 5735: 5734: 5727: 5720: 5713: 5701: 5695: 5694: 5693: 5692: 5680: 5674: 5672: 5661: 5660: 5658: 5657: 5656: 5655: 5643: 5642: 5641: 5628: 5626: 5613: 5605: 5604: 5601: 5600: 5598: 5597: 5590: 5583: 5582: 5581: 5561: 5560: 5559: 5558: 5519: 5518: 5517: 5516: 5504: 5503: 5502: 5490: 5489: 5488: 5476: 5475: 5474: 5442: 5440: 5434: 5433: 5431: 5430: 5423: 5422: 5421: 5404: 5402: 5393: 5375: 5374: 5372: 5371: 5370: 5369: 5364: 5351: 5349: 5347:Cardiovascular 5343: 5342: 5339: 5338: 5336: 5335: 5334: 5333: 5321: 5320: 5319: 5306: 5304: 5298: 5297: 5295: 5294: 5293: 5292: 5280: 5279: 5278: 5273: 5260: 5258: 5252: 5251: 5249: 5248: 5243: 5238: 5233: 5232: 5231: 5219: 5218: 5217: 5204: 5199: 5198: 5197: 5185: 5184: 5183: 5171: 5165: 5164: 5163: 5162: 5150: 5144: 5142: 5128: 5126:nervous system 5120: 5119: 5117: 5116: 5115: 5114: 5101: 5099: 5093: 5092: 5090: 5089: 5088: 5087: 5075: 5074: 5073: 5068: 5056: 5050: 5049: 5048: 5047: 5035: 5034: 5033: 5028: 5023: 5018: 5013: 5001: 5000: 4999: 4987: 4986: 4985: 4980: 4978:Vaginal cancer 4975: 4970: 4965: 4960: 4948: 4947: 4946: 4934: 4928: 4926: 4920: 4919: 4910: 4908: 4907: 4900: 4893: 4885: 4878: 4877: 4828: 4803: 4748: 4703:BMC Nephrology 4689: 4644:(2): 313–325. 4624: 4598: 4570: 4542: 4492: 4467: 4441: 4422: 4401:(5): 377–386. 4381: 4327: 4290: 4265: 4216: 4162: 4133:(15): 2810–6. 4110: 4067: 4019: 3978: 3959:(1–2): 26–47. 3953:Cancer Letters 3943: 3894: 3847: 3793: 3744: 3695: 3644: 3615:(8): a021378. 3595: 3560: 3516: 3467: 3424: 3393: 3350: 3301: 3272:(16): 8241–2. 3252: 3203: 3154: 3105: 3084:(2): 339–349. 3064: 3015: 2961: 2926: 2877: 2828: 2803:Virus Research 2789: 2738: 2697: 2634: 2576: 2501: 2458: 2423: 2366: 2337:(16): 7812–7. 2317: 2288:(14): 7713–9. 2268: 2219: 2188:(10): 977–83. 2182:Cancer Science 2168: 2147: 2098: 2063: 2034:(8): 1736–42. 2014: 1975:(20): 9340–5. 1955: 1898: 1849: 1813: 1792:(7): 1215–35. 1772: 1719: 1689: 1675: 1653: 1594: 1550: 1531:(1–2): 24–34. 1515: 1477: 1450:(2): 163–173. 1431: 1382: 1330: 1309: 1286: 1279: 1260: 1258: 1255: 1254: 1253: 1252:(cancer virus) 1247: 1242: 1235: 1232: 1211: 1208: 1194: 1191: 1169: 1166: 1157:Barry Blumberg 1148: 1145: 1075:carcinogenesis 999: 996: 972:Main article: 969: 966: 965: 964: 961: 958: 955: 952: 949:DNA-polymerase 938: 935: 916: 913: 910: 907: 874: 863:non-retroviral 850: 847: 723: 722: 694: 691: 675:non-coding RNA 634: 631: 623:DNA polymerase 610: 607: 597: 594: 518:hepadnaviruses 513: 510: 503: 502: 484:is small, 154 479: 469: 462: 427: 412: 409: 356: 353: 351: 348: 343: 340: 314:woolly monkeys 250:Hepadnaviridae 235: 234:Classification 232: 223:Hepadnaviridae 197: 196: 189: 187: 183: 182: 175: 171: 170: 167:Hepadnaviridae 163: 159: 158: 151: 147: 146: 139: 135: 134: 131:Artverviricota 127: 123: 122: 115: 111: 110: 103: 96: 95: 90: 86: 85: 72: 71: 55: 54: 46: 45: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 7714: 7703: 7700: 7698: 7695: 7694: 7692: 7675: 7670: 7666: 7662: 7657: 7653: 7649: 7644: 7640: 7636: 7631: 7627: 7622: 7616: 7612: 7607: 7601: 7597: 7596: 7594: 7592: 7588: 7584: 7579: 7556: 7553: 7551: 7548: 7544: 7541: 7539: 7535: 7532: 7526: 7523: 7521: 7518: 7517: 7516: 7515: 7512: 7502: 7498: 7495: 7493: 7490: 7488: 7485: 7481: 7478: 7476: 7473: 7471: 7468: 7467: 7466: 7465: 7461: 7460: 7458: 7456: 7454: 7449: 7441: 7438: 7436: 7433: 7432: 7431: 7430: 7426: 7422: 7419: 7417: 7414: 7412: 7409: 7408: 7407: 7406: 7402: 7398: 7395: 7394: 7393: 7392: 7388: 7387: 7385: 7383: 7381: 7376: 7373: 7371: 7367: 7364: 7362: 7358: 7334: 7331: 7330: 7329: 7328: 7324: 7323: 7321: 7318: 7314: 7311: 7309: 7307: 7302: 7299: 7297: 7293: 7277: 7274: 7272: 7269: 7268: 7267: 7266: 7262: 7261: 7259: 7256: 7252: 7249: 7247: 7245: 7240: 7237: 7235: 7231: 7217: 7214: 7213: 7211: 7208: 7204: 7201: 7199: 7197: 7192: 7189: 7187: 7183: 7169: 7166: 7165: 7163: 7160: 7156: 7153: 7151: 7149: 7144: 7141: 7139: 7135: 7121: 7118: 7117: 7115: 7112: 7108: 7105: 7103: 7101: 7096: 7093: 7091: 7087: 7073: 7070: 7069: 7067: 7064: 7060: 7057: 7055: 7053: 7048: 7045: 7043: 7042:Parainfluenza 7039: 7029: 7026: 7025: 7023: 7021: 7019: 7014: 7004: 7001: 6999: 6998:Neuraminidase 6996: 6994: 6991: 6990: 6988: 6985: 6981: 6973: 6970: 6969: 6968: 6967: 6963: 6959: 6956: 6955: 6954: 6953: 6949: 6948: 6946: 6943: 6939: 6936: 6934: 6932: 6927: 6924: 6922: 6918: 6915: 6912: 6903: 6889: 6886: 6884: 6881: 6879: 6876: 6874: 6871: 6869: 6866: 6864: 6861: 6859: 6856: 6854: 6851: 6849: 6846: 6841: 6838: 6837: 6836: 6833: 6832: 6830: 6828: 6826: 6821: 6815: 6812: 6808: 6805: 6803: 6800: 6798: 6795: 6794: 6793: 6792: 6788: 6787: 6785: 6783: 6781: 6776: 6773: 6770: 6765: 6761: 6751: 6748: 6746: 6743: 6741: 6738: 6736: 6733: 6731: 6728: 6726: 6723: 6721: 6718: 6717: 6715: 6713: 6711: 6706: 6698: 6695: 6693: 6690: 6689: 6688: 6687: 6683: 6682: 6680: 6678: 6676: 6671: 6668: 6665: 6660: 6656: 6653: 6650: 6641: 6627: 6624: 6623: 6621: 6619: 6617: 6612: 6609: 6606: 6600: 6596: 6592: 6588: 6578: 6575: 6573: 6570: 6568: 6565: 6563: 6560: 6558: 6555: 6553: 6550: 6549: 6547: 6545: 6543: 6538: 6535: 6532: 6527: 6523: 6520: 6517: 6510: 6507: 6505: 6501: 6483: 6480: 6478: 6475: 6474: 6472: 6470: 6468: 6463: 6456: 6453: 6452: 6451: 6448: 6446: 6443: 6441: 6439: 6437: 6432: 6429: 6425: 6421: 6411: 6408: 6407: 6397: 6393: 6390: 6388: 6385: 6383: 6380: 6379: 6377: 6374: 6370: 6367: 6365: 6363: 6358: 6348: 6345: 6343: 6340: 6339: 6337: 6334: 6330: 6327: 6325: 6323: 6318: 6315: 6310: 6306: 6302: 6298: 6293: 6289: 6286: 6283: 6278: 6271: 6257: 6254: 6253: 6251: 6249: 6247: 6242: 6239: 6237: 6236:Baculoviridae 6233: 6223: 6220: 6219: 6217: 6215: 6213: 6208: 6202: 6199: 6197: 6194: 6192: 6189: 6188: 6186: 6184: 6182: 6177: 6171: 6168: 6166: 6163: 6162: 6160: 6158: 6156: 6151: 6148: 6146: 6142: 6139: 6131: 6117: 6114: 6112: 6109: 6108: 6106: 6104: 6102: 6097: 6094: 6092: 6088: 6078: 6075: 6074: 6072: 6070: 6068: 6063: 6060: 6058: 6054: 6044: 6041: 6039: 6036: 6034: 6031: 6029: 6026: 6025: 6023: 6021: 6019: 6014: 6004: 6001: 5999: 5996: 5995: 5993: 5990: 5986: 5983: 5981: 5979: 5974: 5971: 5969: 5965: 5962: 5959: 5954: 5953:Duplodnaviria 5949:linear ds-DNA 5947: 5944: 5942: 5938: 5933: 5929: 5925: 5918: 5913: 5911: 5906: 5904: 5899: 5898: 5895: 5881: 5878: 5877: 5876: 5875: 5871: 5869: 5868: 5864: 5863: 5861: 5859: 5855: 5845: 5844: 5840: 5839: 5837: 5835: 5831: 5824: 5820: 5819: 5815: 5812: 5808: 5807: 5803: 5800: 5796: 5795: 5791: 5788: 5784: 5783: 5779: 5777: 5776: 5772: 5770: 5767: 5766: 5762: 5758: 5757: 5753: 5751: 5748: 5747: 5745: 5743: 5739: 5733: 5732: 5728: 5726: 5725: 5721: 5719: 5718: 5714: 5711: 5707: 5706: 5702: 5700: 5697: 5696: 5691: 5688: 5687: 5686: 5685: 5681: 5679: 5676: 5675: 5673: 5671: 5666: 5662: 5654: 5651: 5650: 5649: 5648: 5644: 5640: 5637: 5636: 5635: 5634: 5630: 5629: 5627: 5625: 5621: 5617: 5614: 5612: 5606: 5596: 5595: 5591: 5589: 5588: 5584: 5580: 5579:Parainfluenza 5577: 5576: 5575: 5574: 5569: 5568: 5563: 5562: 5557: 5553: 5550: 5549: 5548: 5547: 5543: 5539: 5535: 5530: 5529: 5524: 5521: 5520: 5515: 5512: 5511: 5510: 5509: 5505: 5501: 5498: 5497: 5496: 5495: 5491: 5487: 5484: 5483: 5482: 5481: 5477: 5473: 5470: 5469: 5468: 5467: 5463: 5459: 5455: 5452: 5447: 5444: 5443: 5441: 5439: 5435: 5429: 5428: 5424: 5420: 5416: 5415:EBV infection 5413: 5412: 5411: 5410: 5406: 5405: 5403: 5401: 5397: 5394: 5392: 5387: 5380: 5376: 5368: 5365: 5363: 5360: 5359: 5358: 5357: 5353: 5352: 5350: 5348: 5344: 5332: 5329: 5328: 5327: 5326: 5322: 5318: 5315: 5314: 5313: 5312: 5308: 5307: 5305: 5303: 5299: 5291: 5288: 5287: 5286: 5285: 5281: 5277: 5274: 5272: 5271:Poliomyelitis 5269: 5268: 5267: 5266: 5262: 5261: 5259: 5257: 5253: 5247: 5244: 5242: 5239: 5237: 5234: 5230: 5227: 5226: 5225: 5224: 5220: 5216: 5213: 5212: 5210: 5209: 5205: 5203: 5200: 5196: 5193: 5192: 5191: 5190: 5186: 5182: 5179: 5178: 5177: 5176: 5172: 5170: 5167: 5166: 5161: 5158: 5157: 5156: 5155: 5151: 5149: 5146: 5145: 5143: 5141: 5136: 5132: 5129: 5127: 5121: 5113: 5110: 5109: 5108: 5107: 5103: 5102: 5100: 5098: 5094: 5086: 5083: 5082: 5081: 5080: 5076: 5072: 5069: 5067: 5064: 5063: 5062: 5061: 5057: 5055: 5052: 5051: 5046: 5043: 5042: 5041: 5040: 5036: 5032: 5029: 5027: 5024: 5022: 5019: 5017: 5014: 5012: 5009: 5008: 5007: 5006: 5002: 4998: 4995: 4994: 4993: 4992: 4988: 4984: 4981: 4979: 4976: 4974: 4973:Vulvar cancer 4971: 4969: 4968:Penile cancer 4966: 4964: 4961: 4959: 4956: 4955: 4954: 4953: 4949: 4945: 4942: 4941: 4940: 4939: 4935: 4933: 4930: 4929: 4927: 4925: 4921: 4917: 4913: 4906: 4901: 4899: 4894: 4892: 4887: 4886: 4883: 4873: 4869: 4865: 4861: 4856: 4851: 4847: 4843: 4839: 4832: 4829: 4817: 4813: 4807: 4804: 4799: 4795: 4791: 4787: 4783: 4779: 4775: 4771: 4767: 4763: 4759: 4752: 4749: 4744: 4740: 4735: 4730: 4726: 4722: 4717: 4712: 4708: 4704: 4700: 4693: 4690: 4685: 4681: 4676: 4671: 4667: 4663: 4659: 4655: 4651: 4647: 4643: 4639: 4635: 4628: 4625: 4612: 4608: 4602: 4599: 4587: 4583: 4582:"Hepatitis B" 4577: 4575: 4571: 4559: 4558:wwwnc.cdc.gov 4555: 4549: 4547: 4543: 4538: 4534: 4530: 4526: 4522: 4518: 4514: 4510: 4506: 4499: 4497: 4493: 4481: 4477: 4471: 4468: 4456:. 8 June 2022 4455: 4451: 4445: 4442: 4437: 4433: 4426: 4423: 4418: 4414: 4409: 4404: 4400: 4396: 4392: 4385: 4382: 4377: 4373: 4369: 4365: 4361: 4357: 4353: 4349: 4345: 4338: 4336: 4334: 4332: 4328: 4315: 4311: 4305: 4303: 4301: 4299: 4297: 4295: 4291: 4279: 4275: 4269: 4266: 4261: 4257: 4252: 4247: 4243: 4239: 4235: 4231: 4227: 4220: 4217: 4212: 4208: 4203: 4198: 4193: 4188: 4184: 4180: 4176: 4169: 4167: 4163: 4158: 4154: 4149: 4144: 4140: 4136: 4132: 4128: 4124: 4117: 4115: 4111: 4106: 4102: 4098: 4094: 4090: 4086: 4082: 4078: 4071: 4068: 4063: 4059: 4054: 4049: 4045: 4041: 4037: 4033: 4026: 4024: 4020: 4015: 4011: 4006: 4001: 3997: 3993: 3989: 3982: 3979: 3974: 3970: 3966: 3962: 3958: 3954: 3947: 3944: 3939: 3935: 3930: 3925: 3921: 3917: 3913: 3909: 3905: 3898: 3895: 3890: 3886: 3881: 3876: 3872: 3868: 3861: 3854: 3852: 3848: 3843: 3839: 3834: 3829: 3824: 3819: 3815: 3811: 3807: 3800: 3798: 3794: 3789: 3785: 3780: 3775: 3771: 3767: 3764:(5): 1681–9. 3763: 3759: 3755: 3748: 3745: 3740: 3736: 3731: 3726: 3722: 3718: 3714: 3710: 3706: 3699: 3696: 3691: 3687: 3682: 3677: 3672: 3667: 3663: 3659: 3655: 3648: 3645: 3640: 3636: 3631: 3626: 3622: 3618: 3614: 3610: 3606: 3599: 3596: 3591: 3587: 3583: 3579: 3575: 3571: 3564: 3561: 3556: 3552: 3547: 3542: 3538: 3534: 3530: 3523: 3521: 3517: 3512: 3508: 3503: 3498: 3494: 3490: 3487:(7): 2160–6. 3486: 3482: 3478: 3471: 3468: 3463: 3459: 3455: 3451: 3447: 3443: 3439: 3435: 3428: 3425: 3420: 3416: 3413:(5): 457–64. 3412: 3408: 3404: 3397: 3394: 3389: 3385: 3381: 3377: 3373: 3369: 3365: 3361: 3354: 3351: 3346: 3342: 3337: 3332: 3328: 3324: 3320: 3316: 3312: 3305: 3302: 3297: 3293: 3288: 3283: 3279: 3275: 3271: 3267: 3263: 3256: 3253: 3248: 3244: 3239: 3234: 3230: 3226: 3222: 3218: 3214: 3207: 3204: 3199: 3195: 3190: 3185: 3181: 3177: 3173: 3169: 3165: 3158: 3155: 3150: 3146: 3141: 3136: 3132: 3128: 3124: 3120: 3116: 3109: 3106: 3101: 3097: 3092: 3087: 3083: 3079: 3075: 3068: 3065: 3060: 3056: 3051: 3046: 3042: 3038: 3034: 3030: 3026: 3019: 3016: 3011: 3007: 3002: 2997: 2992: 2987: 2983: 2979: 2975: 2968: 2966: 2962: 2957: 2953: 2949: 2945: 2941: 2937: 2930: 2927: 2922: 2918: 2913: 2908: 2904: 2900: 2897:(2): 579–83. 2896: 2892: 2888: 2881: 2878: 2873: 2869: 2864: 2859: 2855: 2851: 2847: 2843: 2839: 2832: 2829: 2824: 2820: 2816: 2812: 2809:(2): 164–76. 2808: 2804: 2800: 2793: 2790: 2785: 2781: 2776: 2771: 2766: 2761: 2757: 2753: 2749: 2742: 2739: 2734: 2730: 2725: 2720: 2717:(3): 908–16. 2716: 2712: 2708: 2701: 2698: 2693: 2689: 2684: 2679: 2675: 2671: 2666: 2661: 2657: 2653: 2649: 2641: 2639: 2635: 2630: 2626: 2622: 2618: 2614: 2610: 2606: 2602: 2598: 2594: 2590: 2583: 2581: 2577: 2572: 2568: 2564: 2560: 2555: 2550: 2546: 2542: 2538: 2534: 2530: 2526: 2522: 2514: 2512: 2510: 2508: 2506: 2502: 2497: 2493: 2489: 2485: 2481: 2477: 2474:(3): 185–90. 2473: 2469: 2468:Intervirology 2462: 2459: 2454: 2450: 2446: 2442: 2438: 2434: 2427: 2424: 2419: 2415: 2411: 2407: 2402: 2397: 2393: 2389: 2385: 2381: 2377: 2370: 2367: 2362: 2358: 2353: 2348: 2344: 2340: 2336: 2332: 2328: 2321: 2318: 2313: 2309: 2304: 2299: 2295: 2291: 2287: 2283: 2279: 2272: 2269: 2264: 2260: 2255: 2250: 2246: 2242: 2238: 2234: 2230: 2223: 2220: 2215: 2211: 2206: 2201: 2196: 2191: 2187: 2183: 2179: 2172: 2169: 2157: 2151: 2148: 2143: 2139: 2134: 2129: 2125: 2121: 2117: 2113: 2109: 2102: 2099: 2094: 2090: 2086: 2082: 2078: 2074: 2067: 2064: 2059: 2055: 2050: 2045: 2041: 2037: 2033: 2029: 2025: 2018: 2015: 2010: 2006: 2001: 1996: 1991: 1986: 1982: 1978: 1974: 1970: 1966: 1959: 1956: 1951: 1947: 1942: 1937: 1933: 1929: 1925: 1921: 1917: 1913: 1909: 1902: 1899: 1894: 1890: 1885: 1880: 1876: 1872: 1868: 1864: 1860: 1853: 1850: 1845: 1841: 1837: 1833: 1830:(4): 514–22. 1829: 1825: 1817: 1814: 1809: 1805: 1800: 1795: 1791: 1787: 1783: 1776: 1773: 1768: 1764: 1760: 1756: 1752: 1748: 1743: 1738: 1734: 1730: 1723: 1720: 1707: 1703: 1699: 1693: 1690: 1678: 1672: 1668: 1664: 1657: 1654: 1649: 1645: 1640: 1635: 1630: 1625: 1621: 1617: 1613: 1609: 1605: 1598: 1595: 1590: 1586: 1582: 1578: 1574: 1570: 1567:(3): 209–18. 1566: 1562: 1554: 1551: 1546: 1542: 1538: 1534: 1530: 1526: 1525:Intervirology 1519: 1516: 1511: 1507: 1503: 1499: 1495: 1491: 1484: 1482: 1478: 1473: 1469: 1465: 1461: 1457: 1453: 1449: 1445: 1438: 1436: 1432: 1427: 1423: 1419: 1415: 1410: 1405: 1401: 1397: 1393: 1386: 1383: 1378: 1374: 1369: 1364: 1360: 1356: 1352: 1348: 1344: 1337: 1335: 1331: 1326: 1320: 1318: 1316: 1314: 1310: 1297: 1290: 1287: 1282: 1276: 1272: 1265: 1262: 1256: 1251: 1248: 1246: 1243: 1241: 1238: 1237: 1233: 1231: 1227: 1225: 1221: 1217: 1209: 1207: 1203: 1199: 1192: 1190: 1186: 1182: 1178: 1174: 1167: 1165: 1161: 1158: 1153: 1146: 1144: 1142: 1138: 1134: 1129: 1127: 1123: 1119: 1115: 1111: 1108: 1104: 1100: 1096: 1092: 1088: 1087:liver cancers 1084: 1080: 1076: 1072: 1068: 1067:liver disease 1064: 1058: 1056: 1052: 1048: 1044: 1040: 1036: 1032: 1031:transcription 1028: 1024: 1020: 1016: 1013: 1012:intracellular 1009: 1005: 997: 995: 993: 988: 986: 982: 975: 967: 962: 959: 956: 953: 950: 947: 943: 939: 936: 933: 929: 925: 921: 917: 914: 911: 908: 905: 901: 897: 896: 891: 887: 883: 879: 875: 872: 871: 870: 868: 864: 855: 848: 846: 843: 838: 835: 833: 829: 825: 821: 817: 813: 812:New Caledonia 809: 805: 801: 797: 793: 789: 783: 780: 777: 774: 772: 771:United States 768: 764: 760: 756: 755:South America 752: 748: 744: 740: 736: 732: 728: 720: 719: 718: 715: 712: 709: 706: 704: 699: 692: 690: 688: 684: 680: 676: 671: 667: 664: 659: 654: 652: 648: 643: 641: 632: 630: 628: 624: 620: 616: 608: 602: 595: 593: 591: 587: 582: 580: 576: 572: 568: 564: 560: 556: 552: 547: 542: 540: 535: 531: 527: 523: 519: 511: 509: 507: 500: 495: 491: 487: 483: 480: 477: 476:reading frame 473: 470: 466: 463: 460: 459: 454: 450: 446: 442: 439: 435: 431: 428: 425: 421: 418: 417: 416: 410: 408: 406: 401: 396: 392: 388: 385: 381: 377: 373: 369: 361: 354: 349: 347: 341: 339: 336: 334: 330: 326: 321: 319: 315: 312: 308: 304: 300: 296: 292: 288: 284: 280: 279:Blubervirales 276: 275: 270: 269: 264: 263: 258: 257: 252: 251: 246: 245: 240: 233: 231: 229: 225: 224: 219: 218: 213: 209: 205: 204: 194: 193: 188: 185: 184: 181: 180: 176: 173: 172: 169: 168: 164: 161: 160: 157: 156: 155:Blubervirales 152: 149: 148: 145: 144: 140: 137: 136: 133: 132: 128: 125: 124: 121: 120: 116: 113: 112: 109: 108: 104: 101: 98: 97: 94: 91: 88: 87: 82: 77: 73: 70: 67: 63: 60: 56: 52: 47: 44: 40: 37: 33: 19: 7590: 7462: 7451: 7427: 7403: 7389: 7378: 7325: 7304: 7263: 7242: 7207:glycoprotein 7194: 7159:glycoprotein 7146: 7111:glycoprotein 7098: 7063:glycoprotein 7050: 7016: 6984:glycoprotein 6964: 6950: 6929: 6823: 6814:Nucleocapsid 6789: 6778: 6769:Pisuviricota 6708: 6684: 6673: 6614: 6605:Pisuviricota 6540: 6465: 6434: 6423: 6360: 6320: 6282:Monodnaviria 6244: 6210: 6179: 6153: 6145:Epstein–Barr 6099: 6091:Adenoviridae 6065: 6016: 5976: 5958:Varidnaviria 5872: 5865: 5841: 5834:Pancreatitis 5816: 5804: 5792: 5780: 5773: 5755: 5754: 5729: 5722: 5715: 5703: 5682: 5645: 5631: 5592: 5585: 5571: 5565: 5532: 5526: 5506: 5492: 5478: 5449: 5425: 5407: 5362:Pericarditis 5354: 5323: 5309: 5282: 5263: 5221: 5206: 5187: 5173: 5152: 5135:Encephalitis 5104: 5077: 5058: 5037: 5003: 4989: 4950: 4937: 4936: 4845: 4841: 4831: 4819:. Retrieved 4816:www.hepb.org 4815: 4806: 4765: 4761: 4751: 4706: 4702: 4692: 4641: 4637: 4627: 4615:. Retrieved 4610: 4601: 4589:. Retrieved 4585: 4561:. Retrieved 4557: 4512: 4508: 4483:. Retrieved 4480:www.hepb.org 4479: 4470: 4458:. Retrieved 4453: 4444: 4435: 4425: 4398: 4394: 4384: 4351: 4347: 4318:. Retrieved 4313: 4281:. Retrieved 4277: 4268: 4233: 4229: 4219: 4182: 4179:BMC Genomics 4178: 4130: 4126: 4083:(6): 340–9. 4080: 4076: 4070: 4038:(4): 381–4. 4035: 4031: 3995: 3991: 3981: 3956: 3952: 3946: 3911: 3907: 3897: 3870: 3866: 3813: 3809: 3761: 3757: 3747: 3712: 3708: 3698: 3664:(1): 65–73. 3661: 3657: 3647: 3612: 3608: 3598: 3573: 3569: 3563: 3536: 3533:FEBS Letters 3532: 3484: 3480: 3470: 3440:(6): 983–7. 3437: 3433: 3427: 3410: 3406: 3396: 3366:(3): 306–9. 3363: 3359: 3353: 3318: 3314: 3304: 3269: 3265: 3255: 3220: 3216: 3206: 3171: 3167: 3157: 3122: 3118: 3108: 3081: 3077: 3067: 3032: 3028: 3018: 2984:(1): 48–64. 2981: 2977: 2939: 2935: 2929: 2894: 2890: 2880: 2845: 2841: 2831: 2806: 2802: 2792: 2755: 2751: 2741: 2714: 2710: 2700: 2655: 2651: 2596: 2592: 2554:1887/3256616 2528: 2524: 2471: 2467: 2461: 2436: 2432: 2426: 2383: 2379: 2369: 2334: 2330: 2320: 2285: 2281: 2271: 2236: 2232: 2222: 2185: 2181: 2171: 2159:. Retrieved 2150: 2115: 2111: 2101: 2076: 2072: 2066: 2031: 2028:Biochemistry 2027: 2017: 1972: 1968: 1958: 1923: 1919: 1901: 1869:(1): 51–68. 1866: 1862: 1852: 1827: 1823: 1816: 1789: 1785: 1775: 1732: 1728: 1722: 1710:. Retrieved 1706:the original 1701: 1692: 1680:. Retrieved 1666: 1656: 1611: 1607: 1597: 1564: 1560: 1553: 1528: 1524: 1518: 1493: 1489: 1447: 1443: 1399: 1395: 1385: 1350: 1346: 1300:. 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Index

Hepatitis b virus
Hepatitis B
TEM micrograph showing hepatitis B virus virions (with 100 nm scale bar)
Transmission electron microscopy
micrograph
virions
Virus classification
Edit this classification
Virus
Riboviria
Pararnavirae
Artverviricota
Revtraviricetes
Blubervirales
Hepadnaviridae
Orthohepadnavirus
DNA virus
Orthohepadnavirus
Hepadnaviridae
hepatitis B
Orthohepadnavirus
Hepadnaviridae
Avihepadnavirus
Herpetohepadnavirus
Metahepadnavirus
Parahepadnavirus
apes
orangutans
gibbons
bonobos

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