Abstract
During epizootological examination of Popov Island (Primorskii Territory) in May 23–25, 2022, a total of 651 specimens of 4 species of ixodid ticks were collected off vegetation: Ixodes pavlovskyi pavlovskyi Pomerantzev, 1946 (77.5% of the total number), Ixodes persulcatus Schulze, 1930 (15.3%), Haemaphysalis concinna Koch, 1844 (4.5%), and Haemaphysalis japonica douglasi Nuttall et Warburton, 1915 (2.7%). These four tick species had been also recorded on the island previously, in 1982 and 2014. The ticks were distributed unevenly over the island; in particular, a local site (Cape Likander) was found where the density of ixodid ticks reached 100 ind./flag-h. In an individual PCR study of 387 ticks, RNA or DNA of human pathogens was detected only in specimens of the genus Ixodes. The tick-borne encephalitis virus was detected in 0.9 ± 0.50% of the ticks, borreliae, in 37.0 ± 2.60%, the human monocytic ehrlichiosis pathogen, in 9.0 ± 1.54%, and the human anaplasmosis pathogen, in 7.2 ± 1.39%. The observed population density of ixodid ticks and the level of their infection with pathogens do not allow Popov Island to be classified as an epidemiologically low-risk area; therefore, a complex of preventive measures is required.
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Nikitin, A.Y., Zvereva, T.V., Verzhutskaya, Y.A. et al. Fauna and Abundance of Ixodid Ticks and Their Infection with Human Pathogens on Popov Island, Primorskii Territory. Entmol. Rev. 103, 485–491 (2023). https://doi.org/10.1134/S0013873823040097
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DOI: https://doi.org/10.1134/S0013873823040097