Box 1.

Examples of interpretative comments that may be useful in reporting SARS-CoV-2 serology

These must be modified to reflect the validation characteristics and specifications of the assay system used. SARS-CoV-2 IgG antibodies can be found in A–B% of persons >2 weeks after infection. An increase in SARS-CoV-2 antibodies supports a diagnosis of recent infection. SARS-CoV-2 antibody results cannot be used to infer an individual's infectivity. SARS-CoV-2 antibody results are not yet known to correlate with immunity.