This map outlines where in the United States active cases of hepatitis A have been reported in the past 12 months on a scale from 0 to 100 relative to other states. Click on a state to learn more about its particular outbreak. The darker the blue, the greater the incidence of hepatitis A is in that state.
Hepatitis A is a type of liver disease caused by hepatitis A virus (HAV). The virus is spread from one person to another when even trace amounts of the feces of someone with HAV comes into contact with another person's mouth. Click here to learn more about hepatitis A.
Click here to read all our hepatitis A coverage.
This map was last updated January 27, 2023.