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: Surgery
In a suspected case of legionnaires disease, medium used for culture is: 
Select and explain. 
A. Buffered charcoal yeast extract agar, B. Thayer Main, C. Chocolate agar, D. Bordet Gengou
A: Buffered charcoal yeast extract agar
Answer: A: Buffered charcoal yeast extract agar 
Explanation: Definitive method for diagnosis of Legionella infection is isolation of the organism. Buffered charcoal yeast extract agar (BCVE) supplemented with antibiotics and dye is the most sensitive medium for Legionella.