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': 'True about cryptococcus are all except \nSelect and explain. \nA. Primarily infects lung, B. Urease negative, C. India-ink is used, D. All are true', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is `b i.e., Urease negative CRYPTOCOCCUS NEOFORMANS The only pathogenic yeast Four capsular serotypes - A, B, C and D It has polysaccharide capsule Most infections in immunocompromized patients are caused by serotype A. Pigeon droppings commonly contains serotype A and D. Eucalyptus tree contain serotype B. It is urease positive. Mode of transmission By inhalation of the fungus into the lung (most common) Through skin or mucosa (some times).', 'role': 'assistant'}]