Hepatitis B virus infection.
Poss
J
J
D001210:Asia, Southeastern / Q000208:ethnology; D006509:Hepatitis B / Q000517:prevention & control* / Q000635:transmission; D006801:Humans; D007114:Immunization / Q000592:standards*; D007231:Infant, Newborn; D012036:Refugees; D014481:United States