title: Haemophilus influenzae type B resistant to ampicillin. A report of two cases.
mesh_terms: D000667:Ampicillin / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D001344:Autopsy; D002555:Cerebrospinal Fluid / Q000382:microbiology; D004219:District of Columbia; D005260:Female; D006193:Haemophilus influenzae / Q000187:drug effects* / Q000201:enzymology; D006801:Humans; D007223:Infant; D007273:Injections, Intramuscular; D007275:Injections, Intravenous; D008297:Male; D008583:Meningitis, Haemophilus / Q000188:drug therapy* / Q000473:pathology; D008826:Microbial Sensitivity Tests; D010403:Penicillin Resistance; D010405:Penicillinase / Q000378:metabolism; D012964:Sodium / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D000667:Ampicillin; D012964:Sodium; D010405:Penicillinase