title: Shigella sonnei gastroenteritis after oral ampicillin therapy for an unrelated disorder.
abstract: After oral therapy with ampicillin for an unrelated disorder, two patients developed gastroenteritis with an ampicillin-resistant strain of Shigella sonnei. Both patients recovered after treatment with antimicrobial agents to which the Shigella was susceptible by in vitro testing.
mesh_terms: D000328:Adult; D000667:Ampicillin / Q000009:adverse effects*; D002701:Chloramphenicol / Q000627:therapeutic use; D004064:Digestive System / Q000187:drug effects / Q000382:microbiology; D004405:Dysentery, Bacillary / Q000188:drug therapy; D005260:Female; D005759:Gastroenteritis / Q000209:etiology*; D006801:Humans; D008297:Male; D010403:Penicillin Resistance; D012764:Shigella sonnei
chemical_list: D002701:Chloramphenicol; D000667:Ampicillin