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Table 2 Infection rates of A. phagocytophilum in questing I. ricinus , divided by life stage

From: Circulation of four Anaplasma phagocytophilum ecotypes in Europe

Stage

Tested (n)

Positive (n)

Infection rate (CI)

Larvae

386

5

1.3%

(0.4-3.0%)

Nymph

3090

68

2.2%

(1.7-2.8%)

Adult

306

18

5.9%

(3.5-9.1%)

Female

113

5

4.4%

(1.5-10.2%)

Male

193

13

6.7%

(3.6-11.2%)

  1. The 95%-confidence intervals, which were calculated using Fisher's exact test, are between brackets. The infection rate of adults is significantly higher than larvae or nymphs (p < 0.05).