Group B streptococcus.
D000667:Ampicillin / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007114:Immunization; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology / Q000517:prevention & control*; D008297:Male; D010406:Penicillins / Q000627:therapeutic use; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000209:etiology / Q000517:prevention & control*; D012306:Risk; D013290:Streptococcal Infections / Q000517:prevention & control*; D013292:Streptococcus agalactiae
D010406:Penicillins; D000667:Ampicillin