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
Latex agglutination study of the antigen in CSF helps in the diagnosis of - 
Select and explain. 
A. Cryptococcus, B. Candidiasis, C. Aspergillosis, D. Histoplasmosis
A: Cryptococcus
Answer: A: Cryptococcus 
Explanation: Cryptococcal antigens can be detected in CSF, serum and urine by latex agglutination test.
Antigen titer in CSF stays for longer duration and is directly proportional to mortality of the patients.