Sensitivity of urinary Antigen test of Legionella is?

ANSWER: (B) 90%REF: Infectious Disease Secrets edited by Robert H. Gates 2nd ed page 5Rapid urinary antigen detection test for L. Pneumophila is a latest test. Sensitivity of the Legionella urinary antigen is 65-90%, with higher sensitivities in patients with severe disease and patients with mild disease whose specimen are concentrated prior to testing. Sensitivity with concentrated urine reaches 90%