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World J Hepatol. Dec 27, 2011; 3(12): 285-291
Published online Dec 27, 2011. doi: 10.4254/wjh.v3.i12.285
Published online Dec 27, 2011. doi: 10.4254/wjh.v3.i12.285
Characterstics | Genotype 1 | Genotype 2 | Genotype3 | Genotype 4 |
Viral discovery | 1983 | 1986 | 1995 | 2003 |
Geographic distribution | Developing countries | Mexico, West Africa | Developed countries | China, Taiwan, Japan |
Food-borne transmission | No | No | Yes | Yes |
Fecal-oral transmission | Yes | Yes | ? | No |
Water-borne transmission | Yes | Yes | ? | No |
Person-to-person transmission | Yes | Unknown | Yes | Unknown |
Zoonotic transmission | No | No | Yes | Yes |
Occurrence of epidemics | Common | Smaller scale epidemics | No epidemics | Uncommon |
Highest attack rate | Young adults | Young adults | Persons ≥ 40 yr of age | Young adults |
Gender | Male preponderance | Not discriminatory | Mostly male | Not discriminatory |
Mortality rate | 0.5%-3% | 0.5%-3% | Not determined | 0.5%-3% |
Mortality among pregnant women | High | High | Not determined | High |
Chronic infection | None | None | Yes | None |
Severe disease among immuno-compromised | Not reported | Not reported | Yes | Not reported |
Interspecies transmission | Only humans and non-human primates | Only humans and non-human primates | Humans | Humans |
Pigs | Pigs | |||
Subtypes | 5 | 2 | 10 | 7 |
- Citation: Teshale EH, Hu DJ. Hepatitis E: Epidemiology and prevention. World J Hepatol 2011; 3(12): 285-291
- URL: https://www.wjgnet.com/1948-5182/full/v3/i12/285.htm
- DOI: https://dx.doi.org/10.4254/wjh.v3.i12.285