. 2021 Jan 17;90:23–27. doi: 10.1016/j.clinbiochem.2021.01.004

Table 3.

Concordance Between Ortho Vitros Test and UMMC ELISA.

	Ortho Vitros Test Positive	Ortho Vitros Test Negative
UMMC ELISA Positive	72	0
UMMC ELISA Negative	2^a	152

Concordance	224/226; 98.8% (CI: 96.8–99.8)

The Ortho Viros test had one false positive (sample was pre-2019), while the UMMC ELISA had one false negative (Sample was from a PCR + individual). A later sample from this patient was positive on the UMMC ELISA