Prevalence is defined as the number of cases of a given disease in a specified population at a designated time per 100,000 people. Acute hepatitis is defined as the aggregate of: acute hepatitis A as an infection with the hepatitis A virus resulting in anti-HAV IgG seroconversion, acute hepatitis B as the period corresponding to initial infection with the hepatitis B virus ,acute hepatitis C as the period corresponding to initial infection with the hepatitis C virus, resulting in anti-HCV IgG seroconversion, acute hepatitis E as an infection with the hepatitis E virus resulting in anti-HEV IgG seroconversion, all regardless of symptoms.
Source: Global Health Data Exchange