TICK INFECTION IN TERNOPIL PARKS
DOI:
https://doi.org/10.11603/1681-2727.2020.4.11894Keywords:
pathogens, mites, infection, parks, endemic fociAbstract
Ticks in many zoonotic diseases are carriers or reservoirs of pathogens. Such infections include borreliosis, tularemia, tick-borne viral and spring-summer encephalitis, Crimean-Congo hemorrhagic fever, isolated rickettsiosis, granulocytic anaplasmosis, babesiosis, ehrlichiosis, Ku fever and others.
These diseases are grouped into so-called Ixodes tick infections. To date, only part of them is verified. The real incidence exceeds the number of officially registered cases several times.
The purpose of the work is to identify pathogens circulating in the parks of Ternopil in the conditions of anthropologically altered ecosystems, by studying mites as their component; assess epidemic risks for certain diseases with a transmission mechanism, especially those that have not yet been registered; develop epidemiological data for use in the diagnosis of tick-borne diseases along with clinical and laboratory criteria, as well as for a set of preventive measures.
Materials and methods. Entomological: the collection of ticks was carried out by the method of the flag and by our improved and patented means. The type of mites was established using a determinant. In the field seasons of 2018-2019, 358 mites were collected, 2 of them D. reticulatus, the rest – I. ricinus. 63 ticks of ticks were formed.
Laboratory: study of tick pools for pathogen infection by polymerase chain reaction in real time using a test system manufactured by Vector-Best. The test system allowed to determine DNA fragments of B. burgdorferi s. l., B. miyamotoi, B. abesia sp., Anaplasma phagocytophilum, Ehrlichia muris and Ehrlichia chaffeensis.
Results. The study revealed DNA fragments of B. burgdorferi s. l. – 43.9 % of the positive results, B. miyamotoi – 10.6 %, Babesia sp. – 22.7 %, A. phagocytophilum – 22.7 %, E. muris and E. chaffeensis – 0 % of those detected.
Conclusions. I. ricinus dominates in the parks of Ternopil. In mite populations circulate: B. burgdorferi s. l., B. miyamotoi, Babesia sp., A. phagocytophilum. Among the identified pathogens, B. burgdorferi s. predominates. l. Several pathogens were detected in separate pools at the same time.
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