Table 1.
Infection Rates of Ixodes scapularis by State Quadrant
| Pooled | Tick MIR | % MLE (95% CI) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Quadrant | Single (N) | Pools (N) | Total Pools (N) | Total Ticks (N) | POWV Pos N (%) | B. burgdorferi Pos N (%) | POWV Pos N (%) | B. burgdorferi Pos N (%) | % POWV Pos | % B. burgdorferi Pos |
| NW | 50 | 46 | 96 | 173 | 8 (8.33) | 38 (39.58) | 8 (4.62) | 38 (21.97) | 4.67 (2.23–8.62) | 23.42 (17.72–30.05) |
| NE | 21 | 36 | 57 | 176 | 3 (5.26) | 5 (8.77) | 3 (1.70) | 5 (2.84) | 1.72 (0.46–4.57) | 2.92 (1.10–6.33) |
| SW | 0 | 6 | 6 | 26 | 1 (16.67) | 0 (0.00) | 1 (3.85) | 0 (0) | 3.85 (0.23–18.10) | 0 |
| SE | 10 | 14 | 24 | 64 | 1 (4.17) | 9 (37.50) | 1 (1.56) | 9 (14.06) | 1.53 (0.09–7.12) | 15.69 (8.28–26.73) |
MIR, minimum infection rate; MLE, maximum likelihood estimates; NE, Northeast, NW, Northwest; POWV, Powassan virus, SE, Southeast; SW, Southwest.