Most cases of HAV are subclinical. The virus disappears following acute infection. HAV has no known carrier state and plays no role in the production of chronic active hepatitis or cirrhosis.
Transmission is primarily through oral-fecal contact.
Hepatitis B More than 84 percent of the HIV-infected population present with HBV blood markers. HBV is transmitted parenterally, typically by contaminated blood or blood products, and through sexual, perinatal, and occupational contact with infected body fluids. Previous conclusions by Eskild et al. that the presence of hepatitis B antibodies in HIV-infected patients is associated with more rapid clinical progression to AIDS have not been confirmed. Transmission, traditionally thought to occur solely through exposure to contaminated blood can also be attributed to non-parenteral routes. Clinically, HDV is a serious and often progressive disorder manifested by an unusually aggressive course.