Who is at risk?
Anyone who has not been vaccinated or previously infected can get infected with the hepatitis A virus. In areas where the virus is widespread (high endemicity), most hepatitis A infections occur during early childhood. Risk factors include:
poor sanitation;
lack of safe water;
living in a household with an infected person;
being a sexual partner of someone with acute hepatitis A infection;
use of recreational drugs;
sex between men; and
travelling to areas of high endemicity without being immunized.
Source: WHO
Source link: https://www.who.int/news-room/fact-sheets/detail/hepatitis-a