This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'All the following statements are true about V. cholera 0139, EXCEPT: \nSelect and explain. \nA. Clinical manifestations are similar 01 Eltor strain, B. First discovered in Chennai, C. Epidemiologically indistinguishable from 01 Eltor strain, D. Produces Ol Lipo polysaccharide', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Vibrio Cholerae O139 is a derivative of Eltor O1 but it has a distinct lipo polysaccharide and an immunologically related O-antigen polysaccharide capsule. First discovered in chennai, V.cholerae O139 is epidemiologically indistinguishable from O1 Eltor strain. Ref: Textbook of Microbiology, Ananthanarayan and Paniker, 7th Edition, Page 312;Harrisons Principles of Internal Medicine, 16th Edition, Page 909 & 910.', 'role': 'assistant'}]