TestNOW® - COVID-19 NAb Quantitative Test COVID-19 NAb Quantitative Test Detects NAb Titer that blocks RBD-ACE2 interaction. Quick Quantitative test in 15 minutes. Results in WHO recommended standardized Binding Antibody Unit (BAU)/ml. Sensitivity: 99.17% (vs. RT-PCR and Reference NAb ELISA Test). Specificity: 98.67% Excellent correlation with “First WHO International Standard for anti-SARS-CoV-2 Immunoglobulins” (R2 = 0.99). Limit of Detection (LOD): 25 – 50 BAU/ml (Test Lot dependent). Accurate and reliable with consistent results.
