Fig. 2From: Low detection rate of RT-PCR-confirmed COVID-19 using IgM/IgG rapid antibody tests in a large community sample in Lima, PeruEstimated sensitivity (crude and from segmented regression) of the SARS-CoV-2 rapid antibody versus weeks since onset of symptoms among those who reported at least one symptom before testing, stratified by targeted antibody isotype*, using the RT-PCR test as the referenceBack to article page