This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pediatrics
[{'content': 'The main infectious agent associated with recurrent pulmonary infections in patients with cystic fibrosis is _____________ . \nSelect and explain. \nA. Mycoplasma, B. Pseudomonas, C. Pneumocystis, D. Aspergilus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pseudomonas affect small children with malnutrition and poor immunity.it colonise airway of patients with cysticfibrosis and cause recurrent pulmonary exacerbations. pathology:well demarcated areas of consolidation and necrosis occur due to vasculitis Ref : ESSENTIAL PEDIATRICS ,O.P.GHAI, PG NO:355,7 th edition', 'role': 'assistant'}]