EN
Presently acquired results are the outcome of, as for today, pilot-scale, preliminary study, although they were based on a tick (Ixodes ricinus) population of 533 individuals, collected from the vicinity of Szczecin. The areas sampled have been considered as recreational, which means they are frequented by a large number of people. The ticks were collected in 1996 in two seasons: spring-summer and summer-autumn. The overall prevalence of the spirochetes B. burgdorferi sensu lato, in the tick population studied, was 12.6%, while that of the spring-summer season reached 25.5%, decreasing in the summer-autumn season down to 2.3%.