Leveri m, gritti c, rossi l, zavaglia c, civardi e, mondelli mu, et al. Hepatitis b vaccination and hepatitis b immune because there is a high risk of acquiring hbv from a needlestick injury, health care profession. Hepatitis b joaquin balanzo tintore, jaime enriquez. Public health resumo infeccao pelo virus da hepatite a. It is transmitted from ingestion of fecal matter, even in microscopic amounts, and is usually associated with. Hepatitis e has mainly a fecaloral transmission route that is similar to hepatitis a, but the viruses are unrelated. Etiology hepatitis e virus hev is a nonenveloped rna virus in the genus orthohepevirus in the family hepeviridae.
It can cause your liver to swell up most people with hepatitis e get better within a few months. Hepatitis a virus infection is a global public health problem. Within the subgenus orthohepevirus a, there are at least seven different genotypes. Hepatitis e accounts for the major part of enterally transmitted nona, nonb hepatitis worldwide. Hepatitis e virus hev is the aetiological agent of nonhav enterically transmitted hepatitis. Hepatitis e is a liver infection caused by the hepatitis e virus hev. It is the major cause of sporadic as well as epidemic hepatitis, which is no longer confined to asia. Cdc en espanol enfermedades y afecciones, hepatitis viral. In retrospect, the earliest known epidemic of hepatitis e occurred in 1955 in new delhi, but the virus was not isolated until 1983, by russian scientists investigating an outbreak. Hepatitis e information division of viral hepatitis cdc. There is a single hev serotype but the genus orthohepevirus contains four subgenera based on species affected.
Hepatitis c virus hcv is a hepatotropic rna virus that causes progressive liver damage, which might result in liver cirrhosis and hepatocellular carcinoma. The virus originated from the stool of a volunteer orally infected with faeces from suspect cases of nona and nonb hepatitis balayan et al. First indications of hepatitis e as a distinct disease, which differs from hepatitis a, were found in 1980 when sensitive and specific detection systems for hepatitis a virus hav first became available and hepatitis epidemics were examined in india. Hospital universitario materno infantil vall dhebron. Hepatitis e is a selflimited disease that does not result in chronic infection. Clinical signs of acute hepatitis e appear after two to six weeks of incubation. Hepatitis e is inflammation of the liver caused by infection with the hepatitis e virus hev. Hepatitis e virus hev, the etiological agent of hepatitis e he, was described for the first time using electron microscopy in 1983 as a spherical viral particle being 27 to 30 nm in size. The virus has a wide range of distribution and it is the main cause of acute hepatitis transmitted by the enteric route in. While rare in the united states, hepatitis e is common in many parts of the world. Please use one of the following formats to cite this article in your essay, paper or report.
The major symptoms of hepatitis e are fever, nausea, abdominal pain, loss of appetite, vomiting, hepatomegaly, jaundice, itching, pale stools, and. Phosphorylation of hepatitis c virus encoded nonstructural protein ns5a. Classical hepatitis e virus induces acute infection, but not the chronic infection observed in hepatitis b and c. Domestic animals have been reported as a reservoir for the hepatitis e virus, with some surveys showing infection rates exceeding 95% among domestic pigs. Phosphorylation of hepatitis c virusencoded nonstructural protein ns5a.
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