Abstract
Background and Aim:At present, tick-borne borreliosis is the most common infectious disease transmitted by ticks in Europe, Asia, and North America. This study aimed to examine the epizootiological aspects of the natural nidality of tick-borne borreliosis in Moscow region (the Russian Federation).Materials and Methods:A total of 2,537 ticks representing two species were collected, namely, Ixodes ricinus and Dermacentor reticulatus. The activity, number of ticks, and Borrelia infestation rates were investigated during a high season, that is, from early spring to mid-autumn.Results:In May, amount of I. ricinus spp. was found 2.5 times more than those representing D. reticulatus spp. (p≤0.01). In June, August, and September, the amount of I. ricinus was 9.0 (p≤0.0001), 2.0 (p≤0.05), and 5.0 times higher, respectively, compared to D. reticulatus. In the first 10 days of April, the amount of D. reticulatus was 3 times higher than that of I. ricinus (p≤0.02); in the next 10 days, their amounts were equal (p≥0.05) and in the last 10 days the amount of I. ricinus exceeded that of D. reticulatus (p≤0.05) by 1.5 times. In general, Borrelia afzelii, and Borrelia garinii, were detected. In addition, the naturally occurring tick-borne borreliosis pesthole was revealed in the Moscow region.Conclusion:Borrelia infection rates for ticks comprise 30%. An increase in Borrelia tick infestation was detected within the vicinity of populated areas. The amount of ticks directly depends on the temperature (20°C-25°C) and moisture (from 50%) values.
Highlights
An increasing number of borreliosis cases have been recorded to date
This study aimed to examine the epizootiological aspects of the natural nidality of tickborne borreliosis in Moscow region
This study aims to investigate the epizootiological aspects of the natural nidality of the ixodic tick-borne borreliosis in Moscow region
Summary
An increasing number of borreliosis cases have been recorded to date. This can be explained by the fact that an increasing percentage of ticks are affected by pathogens [1]. Despite the introduction of modern diagnostic methods and the growing number of reports of vector-borne infections, there is still a deficiency of comprehensive understanding of how infections transmitted by ixodid ticks are spread. The number of tick bites recorded in health-care facilities is at least 5 times lower than the number of infections transmitted through tick bites [2]. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. Tick-borne borreliosis is the most common infectious disease transmitted by ticks in Europe, Asia, and North America. This study aimed to examine the epizootiological aspects of the natural nidality of tickborne borreliosis in Moscow region (the Russian Federation)
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