The “CRYPTOCO” Lateral Flow Assay (LFA) is a rapid, point-of-care dipstick test that detects fungal Cryptococcus antigens (CrAg) in serum/CSF, providing fast diagnosis for cryptococcosis (especially meningitis in HIV patients) by showing colored lines within minutes, with semi-quantitative results (titer levels like 1+, 2+, etc.) determined by the intensity of the test line compared to a standard, helping gauge infection severity