One further patient was reactive using the SARS-CoV-2 total antibody test (Wantai) (1/50), reactive for IgM only with the COVID-19 split IgG/IgM Rapid Test Cassette (OrientGene) and SARS-CoV-2 split IgM/IgG One Step Rapid Test Device (Encode) at day 6 (2/50) but negative for the other two assays (2/50). This evidence concerns the gene CD40LG and COVID-19.