Table 1. Prevalence of Coxiella-like endosymbionts in ticks infesting horses reared on Jeju Island, Korea, determined by 16S rRNA nested PCR.

Tick species	Developmental stage	Number of ticks tested	Number of ticks positive (%)	95% CI*
Haemaphysalis longicornis	Adult	231	121 (52.4)	45.9–58.8

*CI, confidence interval