Gano cancanta da bambance-bambancen kwayar cutar IgM da IgG zuwa SARS-CoV-2 a cikin magani, jini (EDTA, sodium citrate da lithium heparin) ko kuma yatsan jini gaba daya, jinin gaba daya marasa lafiya da ake zargi da cutar COVID-19 ta mai ba da lafiya.