Wantai SARS-CoV-2 Ab ELISA Wantai SARS-CoV-2 Ab ELISA Wantai SARS-CoV-2 Ab ELISA Wantai SARS-CoV-2 Ab ELISA Wantai SARS-CoV-2 Ab ELISA Wantai SARS-CoV-2 Ab ELISA
Total n=438 Total n=438 Total n=438 Unvaccinated n=408 Unvaccinated n=408 Unvaccinated n=408
Standard Q COVID-19 IgM/IgG Combo rapid test Positive Negative Total Positive Negative Total
Positive 222 5 227 198 5 203
Negative 140 71 211 135 70 205
Total 362 76 438 333 75 408
Platelia SARS-CoV-2 Total Ab Assay n=366 n=366 n=366 n=340 n=340 n=340
Positive 251 4 255 231 4 235
Negative 50 61 111 45 60 105
Total 301 65 366 276 64 340
Platelia SARS-CoV-2 Total Ab Assay Platelia SARS-CoV-2 Total Ab Assay Platelia SARS-CoV-2 Total Ab Assay Platelia SARS-CoV-2 Total Ab Assay Platelia SARS-CoV-2 Total Ab Assay Platelia SARS-CoV-2 Total Ab Assay
n=366 n=366 n=366 n=340 n=340 n=340
Standard Q COVID-19 IgM/IgG Combo rapid test Positive Negative Total Positive Negative Total
Positive 173 27 200 154 23 177
Negative 82 84 166 81 82 163
Total 255 111 366 235 105 340