Ogaanshaha tayada iyo kala-soocida IgM iyo IgG ee unugyada SARS-CoV-2 ee serum, plasma (EDTA, sodium citrate iyo lithium heparin) ama fingerstick dhiig oo dhan, tijaabooyinka dhiigga oo dhan ee bukaanka looga shakisan yahay infekshanka COVID-19 ee daryeel caafimaad.