title: The persistence of complement fixing and haemagglutination-inhibition antibodies after smallpox infection and after smallpox vaccination.
mesh_terms: D000906:Antibodies; D003168:Complement Fixation Tests; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D009500:Neutralization Tests; D011247:Pregnancy; D012899:Smallpox / Q000276:immunology*; D012900:Smallpox Vaccine / Q000494:pharmacology; D014611:Vaccination
chemical_list: D000906:Antibodies; D012900:Smallpox Vaccine