Seroepidemiology and risk factors of hepatitis B virus in Aden, Yemen.

Background: There is little published data concerning hepatitis B virus (HBV) infection in Aden and no data concerning risk factors for infection. This study aimed to determine the prevalence of HBV infection and risk factors for infection in Aden, Yemen.

Methods: A prospective cross sectional survey of individuals attending primary health care facilities was stratified by age and population size.

Seroepidemiology of hepatitis A and hepatitis E viruses in Aden, Yemen.

The burden of hepatitis A (HAV) and hepatitis E (HEV) infection is unknown in Aden, Yemen. This survey describes the prevalence of antibodies against HAV and HEV among individuals attending primary health care facilities in Aden, Yemen. Five hundred and thirty eight participants, stratified by age and district population size, were enrolled and screened for anti-HAV and 356 for anti-HEV antibodies.