Lipoarabinomannan (LAM) assay in urine is used for screening of?
(A) Mycobacterium tuberculosis (B) Pneumocystis jirovecii (C) Histoplasm capsulatum (D) Cryptococcus neoformans
(A) Lipoarabinomannan (LAM) is a virulence factor for Mycobacterium tuberculosis. It prevents phagolysosomal fusion. It is secreted in urine so can be used for screening purposes.