Table 1

Optical density (OD) values for all antibody pairs compatible with “seroconversion”

Seroconversion (negative to positive)		Seroconversion (borderline to positive)
OD first test result	OD second test result	OD first test result	OD second test result
0.13	1.33	1.04	1.15
0.55	1.62	0.91	2.20
0.61	1.51	0.86	1.61
0.30	1.89	0.96	1.51
		0.82	1.17