Hepatitis B overview: Difference between revisions
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'''Hepatitis B''' is an [[inflammation]] of the [[liver]] and is caused by the ''Hepatitis B virus'' (HBV), a member of the [[Hepadnaviridae|Hepadnavirus family]]<ref name=Baron>{{cite book | author = Zuckerman AJ | title = Hepatitis Viruses. ''In:'' Baron's Medical Microbiology ''(Baron S ''et al'', eds.)| edition = 4th ed. | publisher = Univ of Texas Medical Branch | year = 1996 | url = http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.section.3738 | id = ISBN 0-9631172-1-1 }}</ref> and one of hundreds of unrelated viral species which cause [[Hepatitis#Viral|viral hepatitis]]. It was originally known as "serum hepatitis" and has caused current [[epidemic]]s in parts of Asia and Africa.<ref name=Sherris>{{cite book | author = Ryan KJ; Ray CG (editors) | title = Sherris Medical Microbiology | edition = 4th ed. | pages = pp. 544–51 | publisher = McGraw Hill | year = 2004 | id = ISBN 0-8385-8529-9 }}</ref> Hepatitis B is recognized as [[endemic (epidemiology)|endemic]] in [[Hepatitis B in China|China]] and various other parts of Asia.<ref name=MBOC>{{cite book | author = Alberts B, Johnson A, Lewis J, Raff M, Roberts K, Walter P | title = Molecular Biology of the Cell | edition = 4th | publisher = Garland | year = 2002 | id = [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Search&db=books&doptcmdl=GenBookHL&term=Hepatitis+B+AND+mboc4%5Bbook%5D+AND+374890%5Buid%5D&rid=mboc4.section.4294#4302 (via NCBI Bookshelf)] ISBN 0-8153-3218-1}}</ref> The proportion of the world's population currently infected with the [[virus]] is 3 to 6%, but up to a third have been exposed. Symptoms of the acute illness caused by the virus include liver inflammation, vomiting, [[jaundice]], and rarely, death. Chronic hepatitis B may cause liver [[cirrhosis]] which may then lead to [[hepatoma|liver cancer]], a fatal disease with very poor response to current chemotherapy. | '''Hepatitis B''' is an [[inflammation]] of the [[liver]] and is caused by the ''Hepatitis B virus'' (HBV), a member of the [[Hepadnaviridae|Hepadnavirus family]]<ref name=Baron>{{cite book | author = Zuckerman AJ | title = Hepatitis Viruses. ''In:'' Baron's Medical Microbiology ''(Baron S ''et al'', eds.)| edition = 4th ed. | publisher = Univ of Texas Medical Branch | year = 1996 | url = http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.section.3738 | id = ISBN 0-9631172-1-1 }}</ref> and one of hundreds of unrelated viral species which cause [[Hepatitis#Viral|viral hepatitis]]. It was originally known as "serum hepatitis" and has caused current [[epidemic]]s in parts of Asia and Africa.<ref name=Sherris>{{cite book | author = Ryan KJ; Ray CG (editors) | title = Sherris Medical Microbiology | edition = 4th ed. | pages = pp. 544–51 | publisher = McGraw Hill | year = 2004 | id = ISBN 0-8385-8529-9 }}</ref> Hepatitis B is recognized as [[endemic (epidemiology)|endemic]] in [[Hepatitis B in China|China]] and various other parts of Asia.<ref name=MBOC>{{cite book | author = Alberts B, Johnson A, Lewis J, Raff M, Roberts K, Walter P | title = Molecular Biology of the Cell | edition = 4th | publisher = Garland | year = 2002 | id = [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Search&db=books&doptcmdl=GenBookHL&term=Hepatitis+B+AND+mboc4%5Bbook%5D+AND+374890%5Buid%5D&rid=mboc4.section.4294#4302 (via NCBI Bookshelf)] ISBN 0-8153-3218-1}}</ref> The proportion of the world's population currently infected with the [[virus]] is 3 to 6%, but up to a third have been exposed. Symptoms of the acute illness caused by the virus include liver inflammation, vomiting, [[jaundice]], and rarely, death. Chronic hepatitis B may cause liver [[cirrhosis]] which may then lead to [[hepatoma|liver cancer]], a fatal disease with very poor response to current chemotherapy. | ||
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Hepatitis B usually gets better on its own after a few months.<ref>[http://www.nlm.nih.gov/medlineplus/hepatitisb.html Hepatitis B MedlinePlus article]</ref> It may, however, cause a more serious chronic infection. | Hepatitis B usually gets better on its own after a few months.<ref>[http://www.nlm.nih.gov/medlineplus/hepatitisb.html Hepatitis B MedlinePlus article]</ref> It may, however, cause a more serious chronic infection. | ||
== References == | == References == | ||
{{Reflist|2}} | {{Reflist|2}} | ||
Revision as of 16:21, 18 June 2012
Hepatitis B is an inflammation of the liver and is caused by the Hepatitis B virus (HBV), a member of the Hepadnavirus family[1] and one of hundreds of unrelated viral species which cause viral hepatitis. It was originally known as "serum hepatitis" and has caused current epidemics in parts of Asia and Africa.[2] Hepatitis B is recognized as endemic in China and various other parts of Asia.[3] The proportion of the world's population currently infected with the virus is 3 to 6%, but up to a third have been exposed. Symptoms of the acute illness caused by the virus include liver inflammation, vomiting, jaundice, and rarely, death. Chronic hepatitis B may cause liver cirrhosis which may then lead to liver cancer, a fatal disease with very poor response to current chemotherapy.
Hepatitis B usually gets better on its own after a few months.[4] It may, however, cause a more serious chronic infection.
References
- ↑ Zuckerman AJ (1996). Hepatitis Viruses. In: Baron's Medical Microbiology (Baron S et al, eds.) (4th ed. ed.). Univ of Texas Medical Branch. ISBN 0-9631172-1-1.
- ↑ Ryan KJ; Ray CG (editors) (2004). Sherris Medical Microbiology (4th ed. ed.). McGraw Hill. pp. pp. 544&ndash, 51. ISBN 0-8385-8529-9.
- ↑ Alberts B, Johnson A, Lewis J, Raff M, Roberts K, Walter P (2002). Molecular Biology of the Cell (4th ed.). Garland. (via NCBI Bookshelf) ISBN 0-8153-3218-1.
- ↑ Hepatitis B MedlinePlus article