Table 3 Rickettsia spp. and Borrelia burgdorferi s.l. infection in I. ricinus ticks by sex, year, subregion and habitat, north-eastern Poland.

Sex

Females

262/68.8^a

(63.85–73.39)

109/28.6^a

(24.12–33.43)

10/2.6^a

(1.27–4.77)

0.035

Males

344/76.4^b

(72.25–80.29)

94/20.9^b

(17.22–24.94)

12/2.7^a

(1.39–4.61)

Year

2016

242/72.7^a

(67.55–77.39)

80/24.0^a

(19.53–28.98)

11/3.3^a

(1.66–5.83)

0.623

2017

364/73.1^a

(68.97–76.94)

123/24.7^a

(20.97–28.73)

11/2.2^a

(1.11–3.92)

Subregion

West

167/80.3^a

(74.22–85.47)

40/19.2^a

(41.11–25.25)

1/0.5^a

(0.01–2.65)

0.009

Central

191/68.5^b

(62.65–73.87)

75/26.9^b

(21.77–32.49)

13/4.7^b

(2.50–7.84)

East

248/72.1^b

(67.03–76.77)

88/25.6^{a, b}

(21.05–30.54)

8/2.3^{a, b}

(1.01–4.53)

Habitat

Forest

272/70.8^a

(66.01–75.33)

101/26.3^a

(21.97–31.01)

11/2.9^a

(1.44–5.07)

0.454

Ecotone

334/74.7^a

(70.42–78.69)

102/22.8^a

(19.01–26.99)

11/2.5^a

(1.23–4.36)

Total

606/72.9

(69.76–75.92)

203/24.4

(21.54–27.50)

22/2.6

(1.67–3.98)

< 0.001