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Hepatitis E Virus

Hepatitis E Virus. Hepatitis E - Clinical Features. Incubation period: Average 40 days Range 15-60 days Case-fatality rate: Overall, 1%-3% Pregnant women, 15%-25% Illness severity: Increased with age Chronic sequelae: None identified. Hepatitis E Virus Infection.

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Hepatitis E Virus

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  1. Hepatitis E Virus

  2. Hepatitis E - Clinical Features • Incubation period: Average 40 days • Range 15-60 days • Case-fatality rate: Overall, 1%-3% Pregnant women, 15%-25% • Illness severity: Increased with age • Chronic sequelae: None identified

  3. Hepatitis E Virus Infection Typical Serologic Course Symptoms ALT IgG anti-HEV IgM anti-HEV Titer Virus in stool 0 1 2 3 4 5 6 7 8 9 10 11 12 13 Weeks after Exposure

  4. Hepatitis E - Epidemiologic Features • Most outbreaks associated withfecally contaminated drinking water • Minimal person-to-person transmission • U.S. cases usually have history of travelto HEV-endemic areas

  5. Geographic Distribution of Hepatitis E Outbreaks or Confirmed Infection in >25% of Sporadic Non-ABC Hepatitis

  6. Prevention and Control Measures for Travelers to HEV-Endemic Regions • Avoid drinking water (and beverages with ice) of unknown purity, uncooked shellfish, and uncooked fruit/vegetables not peeled or prepared by traveler • IG prepared from donors in Western countries does not prevent infection • Unknown efficacy of IG prepared from donors in endemic areas • Vaccine?

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