Topic 130
antibodies elisa serological cov sars covid igg assay 19 antibody sera spike serum antigens neutralization assays against immunology diagnosis neutralizing serology infection pcr igm antigen samples coronavirus pandemic sensitivity specificity 100 iga plasma recombinant 2019 detection reactivity prevalence virus testing convalescent immunosorbent diagnostic seroprevalence positive rbd negative viral cross coronaviruses tests detecting test titers disease need specimens confirmed collected protein s1 domain rapid clinical titer microbiology euroimmun validation infections standard sensitivities binding days 93 plaque nucleoprotein 98 specificities evaluation severe respiratory measure gold vaccine 96 receptor tested mers detected donors laboratories quantitative patient detect epidemiologic anti immunity nasopharyngeal values using
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