TABLE 1.
Prevalence of five pathogens and R. buchneri in I. scapularis ticks by seasona
| Agentb | No. of positive ticks (% [95% CI]) |
||
|---|---|---|---|
| Spring (n = 198 [140 A/58 N]) | Fall (n = 480) |
Total (n = 678 [620 A/58 N]) |
|
| Borrelia burgdorferi | |||
| A | 85 (61 [52–69]) | 266 (55 [51–60]) | 351 (57 [53–60]) |
| N | 16 (27 [17–41]) | 16 (27 [17–41]) | |
| Borrelia miyamotoi | |||
| A | 4 (3 [1–8]) | 16 (3 [2–5]) | 20 (3 [2–5]) |
| N | 0 (0 [0–8]) | 0 (0 [0–8]) | |
| Anaplasma phagocytophilum | |||
| A | 19 (14 [9–21]) | 70 (15 [12–18]) | 89 (14 [12–17]) |
| N | 1 (2 [0.1–10]) | 1 (2 [0.1–10]) | |
| Babesia microti | |||
| A | 27 (19 [13–27]) | 61 (13 [10–16]) | 88 (14 [12–17]) |
| N | 9 (15 [8–28]) | 9 (15 [8–28]) | |
| POWV | |||
| A | 5 (3 [1–8]) | 6 (1 [0.5–3]) | 11 (2 [1–3]) |
| N | 0 (0 [0–8]) | 0 (0 [0–8]) | |
| Rickettsia buchneric | |||
| A | 26 (81 [63–92]) | 64 (89 [79–95]) | 90 (86 [78–92]) |
| N | 21 (91 [70–98]) | 21 (91 [70–98]) | |
a
Total prevalences for both spring and fall seasons are included (excluding R. buchneri). Values are means and 95% confidence intervals (CI).
b
A, adults; N, nymphs.
c
Thirty-two adults and 23 nymphs were tested for the spring season; 72 adult ticks were tested for the fall season.