Hepatitis A is inflammation of the liver, caused by the hepatitis A virus. There is a vaccination against hepatitis A.

The highest rates of hepatitis A are seen in Africa, south Asia, South and central America. People who are most at risk of hepatitis A are: people who travel to developing countries, or people who live in areas where hepatitis A is common; partners and family members of people who have the infection; people who have many sexual partners; childcare workers, who are dealing with soiled nappies, and sewage workers.