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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A person returns to Delhi from Bangladesh after 2 days and has diarrhoea. Stool examination shows RBC&;s in the stool. The likely organism is
assistant
The correct answer is  Shigellae cause bacillary dysentery. Infection occurs by ingestion.The minimum infective dose is low-as few as 10-100 bacilli are capable of initiating the disease. Sho incubation period. Clinical features - Frequent passage of loose, scanty faeces containing blood and mucus along with abdominal cramps and tenesmus. Ref: Ananthanarayan and Paniker&;s Textbook of Microbiology, 9th edition; pg no: 286, 287