Table 1.
Descriptive summary of antibody response among cohort participants by years post-WNV infection
| 1 Year (N = 91) | 2 Years (N = 79) | 4 Years (N = 68) | 6 Years (N = 32) | 8 Years (N = 22) | |
|---|---|---|---|---|---|
| Median IgM P/N (range) | 2.37 (0.80–18.70) | 1.74 (0.60–7.60) | 1.72 (0.70–6.54) | 1.72 (0.13–5.84) | 1.61 (0.14–4.08) |
| Median IgG P/N (range) | 8.12 (0.90–18.10) | 6.22 (0.70–20.00) | 5.89 (0.70–20.00) | 6.45 (0.84–20.00) | 2.50 (0.86–6.80) |
| IgM positive (P/N ≥ 3)* | 16 (18) | 5 (6) | 1 (2) | 3 (9) | 0 (0) |
| IgM equivocal (P/N = 2.0–2.99)* | 22 (24) | 17 (22) | 7 (10) | 8 (25) | 5 (23) |
| IgM negative (P/N < 2)* | 53 (58) | 57 (72) | 60 (88) | 21 (66) | 17 (77) |
| IgG negative (P/N < 2)* | 4 (4) | 5 (6) | 9 (13) | 14 (44) | 10 (46) |
*
Reported as crude number (%).