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': 'Rapid growing non-tuberculous mycobacteria causing lung infection are all except: \nSelect and explain. \nA. M. kansasii, B. M. chelonae, C. M. fouitum, D. M. abscessus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) M. Kansasii As mentioned above M Kansasii is not a rapid grower Rapid Growing Mycobacteria Heterogeneous group to mycobacteria capable of rapid growth, colonies appearing within seven days of incubation. Impoant members include: M. phlei : Saprophyte M. fouitum : Chronic abscess, pulmonary lesions M. chelonae : Chronic abscess M. smegmatis : Round in smegma M. vaccae : Immunomodulator that stimulates protectine immune response in tuberculosis M. abscessus : Oesophageal motility disorders such as achlasia', 'role': 'assistant'}]