statistics of hepatitis a worldwide
Hepatitis Statistics. Statistics. Hepatitis A. 1  About 15% of people infected with hepatitis A will have recurring symptoms over a 6 to 9 month period. 2  Hepatitis A occurs in epidemics (many affected people) within the United States and internationally.3  During epidemics years the number of cases of hepatitis A reached 35,000 in the U.S. About 15% of people infected with hepatitis A will have recurring symptoms over a 6 to 9 month period. 2  Hepatitis A occurs in epidemics (many affected people) within the United States and internationally. 3  During epidemics years the number of cases of hepatitis A reached 35,000 in the U.S.