title: Severe rectal bleeding due to Salmonella paratyphi B.
mesh_terms: D000293:Adolescent; D003108:Colonic Diseases / Q000209:etiology* / Q000382:microbiology; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology* / Q000382:microbiology; D006801:Humans; D010284:Paratyphoid Fever / Q000150:complications* / Q000382:microbiology; D012002:Rectal Diseases / Q000209:etiology* / Q000382:microbiology; D012484:Salmonella paratyphi B / Q000302:isolation & purification