title: Ampicillin-resistant Haemophilus influenzae pneumonia and empyema in an infant.
abstract: Ampicillin-resistant Haemophilus influenzae type b was isolated from the pleural fluid of a 15-month-old infant with pneumonia and empyema. The patient was cured when chloramphenicol treatment was substituted for ampicillin.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology / Q000627:therapeutic use*; D002701:Chloramphenicol / Q000627:therapeutic use*; D004653:Empyema / Q000150:complications / Q000188:drug therapy*; D006193:Haemophilus influenzae / Q000187:drug effects*; D006801:Humans; D007223:Infant; D008297:Male; D010403:Penicillin Resistance; D011014:Pneumonia / Q000150:complications / Q000188:drug therapy*
chemical_list: D002701:Chloramphenicol; D000667:Ampicillin