Nchọpụta ruru eru na iche nke IgM na IgG na-egbochi SARS-CoV-2 na ọbara, plasma (EDTA, sodium citrate na lithium heparin) ma ọ bụ fingerstick ọbara dum, ụdị ọbara ọbara zuru oke site n'aka ndị ọrịa chere na ọrịa COVID-19 site n'aka onye ọrụ ahụike.