Table 1 PCR survey results for ticks tested for rickettsiae, northeastern China, 2015. Infection rates of Rickettsia spp. in ticks were calculated following the Bias-corrected MLE method in the software Pooledinfrate, version 4.0; 95 % confidence intervals (CI) are presented in brackets
From: Characterization of rickettsiae in ticks in northeastern China
Tick species | No. of ticks tested | Total no. (%) ticks positive [95 % CI] | Jilin | Heilongjiang | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total no. of ticks tested | Total no. (%) ticks positive [95 % CI] | R. r. (%) [95 % CI] | C. R. j. (%) [95 % CI] | C. R. t. (%) [95 % CI] | Total no. of ticks tested | Total no. of (%) ticks positive | R. r. (%) [95 % CI] | R. h. (%) [95 % CI] | C. R. t. (%) [95 % CI] | |||
Dermacentor nuttalli | 253 | 13 (7.45) [4.30–12.59] | 206 | 8 (5.16) [2.48–10.02] | 8 (5.16) [2.48–10.02] | 0 | 0 | 47 | 5 (10.64)a | 5 (10.64)a | 0 | 0 |
Dermacentor silvarum | 204 | 9 (6.07) [3.10–11.37] | 175 | 6 (4.42) [1.86–9.44] | 6 (4.42) [1.86–9.44] | 0 | 0 | 29 | 3 (10.30)a | 3 (10.30)a | 0 | 0 |
Haemaphysalis concinna | 412 | 16 (5.46) [3.28–8.80] | 0 | 0 | 0 | 0 | 0 | 412 | 16 (5.46) [3.28–8.80] | 0 | 15 (4.96) [2.93–8.09] | 1 (0.24) [0.01–1.18] |
Haemaphysalis longicornis | 390 | 12 (3.91) [2.23–6.59] | 244 | 6 (2.89) [1.30–5.99] | 4 (1.58) [0.58–3.61] | 2 (0.92) [0.16–3.2] | 0 | 146 | 6 (5.42) [2.29–11.64] | 0 | 6 (5.42) [2.29–11.64] | 0 |
Ixodes persulcatus | 1,669 | 72 (6.53) [5.16–8.22] | 393 | 10 (3.12) [1.61–5.62] | 0 | 0 | 10 (3.12) [1.61–5.62] | 1,276 | 62 (7.95) [6.16–10.22] | 0 | 0 | 62 (7.95) [6.16–10.22] |
Total | 2,928 | 122 (6.12) [5.13–7.29] | 1,018 | 30 (3.79) [2.64–5.34] | 18 (1.95) [1.22–2.99] | 2 (0.20) [0.04–0.67] | 10 (1.05) [0.54–1.87] | 1,910 | 92 (7.66) [6.23–9.39] | 8 (0.42) [0.20–0.80] | 21 (1.16) [0.76–1.78] | 63 (4.36) [3.39–5.54] |