title: Placental transfer of hepatitis A antibody.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis*; D005260:Female; D005333:Fetus / Q000276:immunology; D006507:Hepatovirus / Q000276:immunology*; D006801:Humans; D007116:Immunization, Passive; D007223:Infant; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D011247:Pregnancy
chemical_list: D000914:Antibodies, Viral