The correct method of testing for COVID-19 antibodies is important in the current phase of the pandemic when gradual re-opening of the workplace is being contemplated.In India, rapid antibody tests were introduced early in the epidemic and then withdrawn due to inaccurate results. ELISA based tests, which are most accurate of all the prevalent methods, have now a useful role to play especially to assess usefulness of convalescent plasma and the immunity status of individuals returning to work. LFIA based tests can be done as point-of-care and hence good for conducting large seroprevalence studies to assess herd immunity.
Article: Kontou P, Braliou GG, Dimou NL, et al. Antibody tests in detecting SARS-CoV-2 infection: a meta-analysis. Diagnostics 2020 doi: 10.3390/diagnostics10050319 [Link]Indications and tests for diagnosis-Antibody tests metaanalysis