Ampicillin-resistant Haemophilus influenzae.
D000667:Ampicillin / Q000494:pharmacology*; D002648:Child; D002701:Chloramphenicol / Q000627:therapeutic use; D006192:Haemophilus Infections / Q000188:drug therapy; D006193:Haemophilus influenzae / Q000187:drug effects*; D006801:Humans; D007223:Infant; D010403:Penicillin Resistance
D002701:Chloramphenicol; D000667:Ampicillin