This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
Interferon-gamma release assay is used in the diagnosis of 
Select and explain. 
A. HIV, B. Malaria, C. Typhoid, D. TB
D: TB
Answer: D: TB 
Explanation: Recently, two in vitro assays that measure T cell release of IFN-gamma in response to stimulation with the highly tuberculosis-specific antigens ESAT-6 and CFP-10 have become commercially available