Kmety E, Rehácek J, Výrosteková V
Zentralbl Bakteriol Mikrobiol Hyg A. 1987 Feb;263(3):468-70. doi: 10.1016/s0176-6724(87)80111-6.
More than 570 ticks from different parts of the country were studied microscopically. In 45 cases (8%) Borreliae were found. The infectivity rate of ticks in different foci varied from 3-11%, in some instances nearly 20%. Only Ixodes ricinus, male and female ticks were positive in this study.