TABLE 1.

Results for follow-up samples from donors whose index donations were positive for WNV-specific IgG but not WNV-specific IgM

Donor	Day of follow-upa	WNV SCR
		IgM	IgA	IgG
A	0	0.30	0.51	2.58
	7	2.18	33.38	5.19
B	0	0.49	<0.10	2.07
	12	4.22	14.05	5.06
	68	2.02	3.17	8.23
C	0	0.77	<0.10	1.57
	9	0.82	<0.10	1.71
	76	2.03	2.87	6.34
D	0	0.26	<0.10	2.89
	6	6.16	17.26	5.06
E	0	0.11	0.38	2.84
	12	2.77	34.94	3.00
F	0	0.07	<0.10	1.88
	5	0.28	0.59	3.83
	83	0.51	2.76	5.77
G	0	0.15	0.23	1.59
	15	2.83	8.89	3.44
	22	3.17	6.06	5.15
H	0	0.12	<0.10	1.93
	44	1.73	8.34	3.26
I	0	0.33	<0.10	1.68
	8	0.73	0.20	1.71
	11	3.37	4.65	2.75
J	0	0.22	<0.10	2.03
	14	4.63	19.89	3.50
	93	1.55	3.09	6.55
K	0	0.21	<0.10	3.17
	35	0.77	6.81	3.03
L	0	0.41	<0.10	4.11
	199	0.56	0.86	4.77
M	0	0.32	2.96	4.65
	17	1.02	25.10	2.82
N	0	0.65	4.86	5.99
	21	0.81	5.13	7.39

^aFollow-up day 0 = index donation.