SOME ASPECTS OF EPIDEMIOLOGY AND PREVENTION OF LYME DISEASE IN BUKOVYNA
DOI:
https://doi.org/10.11603/1681-2786.2022.2.13305Keywords:
Lyme disease, Ixodid ticks, BorreliaAbstract
Purpose: to analyze the spontaneous infection rate of ixodid ticks with Borrelia, and assess its degree and the risk of developing Lyme disease (LD) in people affected by tick bites.
Materials and methods. The study material was the data from epidemiological surveillance of the incidence of LD (A 69.2), the data from zooentomological monitoring of ticks, and the assessment of the degree of individual infection by rapid Borrelia indication. Sociological and statistical methods were used: dynamic series analysis and correlation analysis.
Results. In Bukovyna, from 2007 to 2021, there was an increase in LD incidence; over the past year, the regional level exceeded the All-Ukrainian indicator for the first time (6.45 against 5.85 per 100 thousand population). There is a tendency to increase the percentage of spontaneously infected Ixodes ricinus borrelia ticks in natural habitats of the region (2015–2021) from 2.3 % to 22.7 % and removed from humans – from 7.3 % to 39.3 %. A strong direct correlation (r=0.88; p˂0.01) was found between these indicators. Between 20.8 % and 27.5 % of the ticks delivered for the study were removed from humans in the first three days of the attack.
Conclusions. These data indicate the expansion of the range of natural and anthropurgical foci of LD in the region. Deratization and acaracidal measures, issues of the sanitary condition of settlements, and sanitary and educational work require increased attention. Rapid indication of Borrelia in ticks stuck to a person, in case of a positive result, contributes to early disease prevention.
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