Table 2.
Prevalence (%) of studied pathogens in I. ricinus and I. persulcatus samples
| Species | Collection area | No. of ticks analysed | No. of ticks infected (%) |
B. burgdorferi (s.l.) n (%) |
Rickettsia spp. n (%) |
“Ca. N. mikurensis” n (%) |
Anaplasma spp. n (%) |
Babesia spp. n (%) |
|---|---|---|---|---|---|---|---|---|
| I. ricinus | 1 | 994 | 325 (32.6) | 202 (20.3) | 126 (12.6) | 11 (1.1) | 12 (1.2) | 7 (0.7) |
| 2 | 998 | 277 (27.8) | 124 (12.4) | 152 (15.2) | 6 (0.6) | 7 (0.7) | 4 (0.4) | |
| 3 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| a | 17 | 2 | 1 | 1 | 0 | 0 | 0 | |
| Subtotal | 2014 | 604 (30.0) | 327 (16.2) | 279 (13.9) | 17 (0.8) | 19 (1.0) | 11 (0.5) | |
| I. persulcatus | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2 | 1160 | 271 (23.4) | 200 (17.2) | 78 (6.7) | 0 | 2 (0.2) | 0 | |
| 3 | 261 | 69 (26.4) | 55 (21.1) | 16 (6.1) | 0 | 0 | 0 | |
| a | 30 | 8 | 8 | 0 | 0 | 0 | 0 | |
| Subtotal | 1451 | 348 (24.0) | 263 (18.1) | 94 (6.5) | 0 | 2 (0.1) | 0 | |
| Total | 3465 | 952 (27.4) | 590 (17.0) | 373 (10.8) | 17 (0.5) | 21 (0.6) | 11 (0.3) |
Abbreviations: 1, I. ricinus-dominated area in south Finland; 2, sympatric area of both species in middle Finland; 3, I. persulcatus-dominated area in north Finland (Fig. 1a)
aTick samples that were not categorized into collection areas due to inaccurate collection information provided by citizens