This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: fungal infection, Subject name: Medicine
Latex agglutination test in CSF is done for detection of: 
Select and explain. 
A. Cryptococcus, B. E.Coli, C. Tuberculosis, D. Coxsackie
A: Cryptococcus
Answer: A: Cryptococcus 
Explanation: Latex agglutination tests can detect antigens of encapsulated organisms (S. pneumoniae, H. influenzae, N. meningitidis, and Cryptococcus neoformans) but are rarely used Except for detection of Cryptococcus or in paially treated patients. PCR of CSF has been used to detect bacteria (S. pneumoniae, H. influenzae, N. meningitidis, M. tuberculosis) and viruses (HSV, VZV, CMV, EBV, and enteroviruses) in patients with meningitis.