title: Vertical transmission of hepatitis-B surface antigen from asymptomatic carrier mothers.
mesh_terms: D002353:Carrier State / Q000276:immunology*; D005260:Female; D005312:Fetal Blood / Q000276:immunology; D005500:Follow-Up Studies; D006509:Hepatitis B / Q000276:immunology / Q000635:transmission*; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000276:immunology*; D013997:Time Factors
chemical_list: D006514:Hepatitis B Surface Antigens