[Exposure to ticks and erythema chronicum migrans among borreliosis patients in Lower Silesia].

The aim of the study was the analysis of Lyme borreliosis cases notified by Clinic for Infections Diseases in Wrocław in connection with exposure to ticks in year 2002. In the analyzed group of patients tick bites were confirmed in 77.9% and the most common places of exposition were forest regions in Lower Silesia (Masyw Slezy, Wzgórza Twardógorskie, Kotlina Kłodzka, Wzgórza Trzebnickie, Bory Dolnoślaskie) and in Wrocław area. EM appeared in 55.8% cases. In cases of multiple ticks professionally exposured persons EM appeared only in 22.2%.