Which groups are considered at high risk for hepatitis A?

Persons experiencing homelessness are considered at high risk for hepatitis A due to several factors that contribute to their vulnerability. These include limited access to sanitation facilities, higher likelihood of being in close quarters with others, and increased exposure to environments that can facilitate the spread of the virus, such as crowded living situations. Hepatitis A is primarily transmitted through the fecal-oral route, and the conditions associated with homelessness can make it more difficult to maintain hygiene practices that prevent transmission.

In contrast, infants and adolescents may not face the same level of risk compared to specific high-risk populations, while healthy adults are generally at lower risk unless they are exposed to certain conditions. Travelers can also be at risk, particularly if visiting areas with poor sanitation, but they do not represent a consistent high-risk group like those experiencing homelessness. Understanding the different risk factors for various populations helps inform public health strategies aimed at preventing outbreaks of hepatitis A.