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Determination of the concordance of rapid LFIA for the detection of anti-SARS-CoV-2 IgG antibodies to microneutralization assay for the detection of neutralizing antibodies.
| Rapid LFIA COVID-PRESTO® (AAZ) | Microneutralization Test | ||
|---|---|---|---|
| Positive | Negative | Total | |
| Positive | 146 | 3 | 149 |
| Negative | 3 | 25 | 28 |
| Total | 149 | 28 | 177 |
We set a titer of 10 as a limit of detection in the neutralization assay. The absence of a colored band in the test region is a negative result in the rapid LFIA test.
