Serological tests are performed when people have been in contact with the SARS-COV-2 virus but it is unclear as to whether or not an infection is in progress. If the serological test is positive, a molceular swab test is required for confirmation. In order to reduce false positive results it is strongly recommended to perform tests of the CLIA and/or ELISA type with a specificity of at least 95% and a sensitivity of at least 90%. Below these thresholds the results obtained are not reliable for the purposes for which these tests are carried out.
