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Epidemiology and Prevention of Viral Hepatitis A to E:

Epidemiology and Prevention of Viral Hepatitis A to E:. Hepatitis Branch Centers for Disease Control and Prevention. An Overview. Viral Hepatitis - Historical Perspective. Enterically transmitted. “Infectious”. A. E. Viral hepatitis. NANB. Parenterally transmitted. B. D. C.

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Epidemiology and Prevention of Viral Hepatitis A to E:

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  1. Epidemiology and Prevention of Viral Hepatitis A to E: Hepatitis Branch Centers for Disease Control and Prevention An Overview

  2. Viral Hepatitis - Historical Perspective Enterically transmitted “Infectious” A E Viral hepatitis NANB Parenterally transmitted B D C “Serum” F, G, ? other

  3. Viral Hepatitis - Overview Type of Hepatitis A B C D E Source of feces blood/ blood/ blood/ feces virus blood-derived blood-derived blood-derived body fluids body fluids body fluids Route of fecal-oral percutaneous percutaneous percutaneous fecal-oral transmission permucosal permucosal permucosal Chronic no yes yes yes no infection Prevention pre/post- pre/post- blood donor pre/post- ensure safe exposure exposure screening; exposure drinking immunization immunization risk behavior immunization; water modification risk behavior modification

  4. Acute Viral Hepatitis by Type, United States, 1982-1993 34% 47% 16% Hepatitis A Hepatitis B Hepatitis C 3% Hepatitis Non-ABC Source: CDC Sentinel Counties Study on Viral Hepatitis

  5. Estimates of Acute and Chronic DiseaseBurden for Viral Hepatitis, United States HAV HBV HCV HDV Acute infections (x 1000)/year* 125-200 140-320 35-180 6-13 Fulminant deaths/year 100 150 ? 35 Chronic 0 1-1.25 3.5 infections million million 70,000 Chronic liver disease deaths/year 0 5,000 8-10,000 1,000 * Range based on estimated annual incidence, 1984-1994.

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