Hepatitis B virus (HBV) is transmitted parenterally via infected blood or body fluids, including perinatal exposures. In the United States, the incidence of new HBV infection has decreased since the 1980s, primarily because of prevention programs such as immunization in children. Nonetheless, the prevalence and burden of chronic HBV infection remain substantial, especially among the Asian/Pacific Islander racial group. Public health efforts must continue to control transmission of HBV and minimize its future impact by identifying and providing effective interventions for individuals with chronic infection.
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