Hepatitis E virus: Difference between revisions

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** Most severe infections in pregnant women
** Most severe infections in pregnant women


== Clinical Presentation ==
== Clinical Manifestations ==
* Incubation period of about 4 to 6 weeks
* Incubation period of about 4 to 6 weeks
* Flu-like prodrome lasting 1 to 10 days with a low-grade fever, followed by hepatitis
* Flu-like prodrome lasting 1 to 10 days with a low-grade fever, followed by hepatitis

Revision as of 23:31, 14 July 2020

Background

Microbiology

  • Member of the Hepeviridae family of RNA viruses
  • Gour genotypes, g1 through g4

Epidemiology

  • g1 and g2 are more common in developing countries
    • Cause epidemic hepatitis
    • Transmitted fecal-orally
    • Associated with contaminated water and poor sanitation
  • g3 and g4 more common in the North America and Europe
    • Zoonoses associated with pigs; humans are incidental hosts
    • Most severe infections in pregnant women

Clinical Manifestations

  • Incubation period of about 4 to 6 weeks
  • Flu-like prodrome lasting 1 to 10 days with a low-grade fever, followed by hepatitis
  • May develop pale stools, dark urine, and jaundice
  • Hepatomegaly and sometimes splenomegaly
    • Cholestasis more common in pregnant women
  • Liver enzyme abnormalities, over 1000 initially, and hyperbilirubinemia
  • Can progress to fulminant hepatitis
  • Particularly high mortality rate in pregnant women (25% in third trimester)