This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
[{'content': 'red leg disease is caused by ? \nSelect and explain. \nA. aeromonas, B. pseudomonas, C. histoplasmosis, D. shigella hemolyticus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: REDLEG Aeromonas is the most common cause of clinical bacterial diseases in amphibians and has been associated with the syndrome known as redleg disease The first thing to do, however, is to isolate the affected animal. Check temps, water quality, humidity and lighting. ref : ananthanaryana 9th ed', 'role': 'assistant'}]