Passively acquired antibody to hepatitis A virus in Thai infants.
D000367:Age Factors; D000914:Antibodies, Viral / Q000032:analysis*; D002675:Child, Preschool; D006506:Hepatitis A / Q000276:immunology*; D006801:Humans; D007112:Immunity, Maternally-Acquired; D007223:Infant; D013785:Thailand
D000914:Antibodies, Viral