CD40LG and COVID-19: While over 100 serology tests have received EUA (including pending submissions), a limited number of POC devices got approved, such as the Sienna-Clarity COVIBLOCK COVID-19 IgG/IgM Rapid Test Cassette from Salofa Oy, the MidaSpot COVID-19 Antibody Combo Detection Kit from Nirmidas Biotech, Inc., the RapCov Rapid COVID-19 Test from Advaite, Inc., the RightSign COVID-19 IgG/IgM Rapid Test Cassette from Hangzhou Biotest Biotech, and the Assure COVID-19 IgG/IgM Rapid Test Device from Assure Tech [47,48].