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Morphological and physiological, biological and epidemiological features of acariana of the genus ixodes (latreille, 1795) - human ectoparasites in biogeocenoses of ternopil region.

OBJECTIVE
Introduction: Ixodine are an integral part of many biotopes, in particular rarefied deciduous and mixed forests, gardens, parks, squares, semi-steppe and steppe areas, etc. Over the past decade, the role of ticks has increased in the transfer of pathogens of many diseases of animals and humans. In particular, these are tick borelliosis, anaplasmosis, erlichiosis, babesiosis, and etc. An important element of the study of ticks is the study of their morphology, physiology, biology, medical and sanitary significance. The aim: Investigation of morphological and physiological features of various life stages of ticks during the feeding period, studying the epidemiological state of acariana in different seasons.


PATIENTS AND METHODS
Materials and methods: The main materials and tools used to catch, keep and identify the ticks were tweezers, lenses, microscopic needles, white cloth for the «flag», alcohol 70%, test tubes. The study was carried out using optical and electronic system SEO-IMAGLAB. Investigation of epidemiological state was carried out using the polymerase chain reaction (PCR) using amplifier method "ROTOR Gene -6000" in real time.


RESULTS
Results: As a result of the analysis of morphological parameters, certain regularities in the ratio of total body length to the width of the abdomen were found at different stages of saturation. From the investigated acariana in 2017 to detect infectious pathogens, 46 females (39%), 56 nymphs (32%), 1 larvae (33.3%) were investigated. 2 undetected acariana were carriers of 3 types of pathogens infectious diseases: Borrelia Burgdorferi senso lato (66 cases), Anaplasma phagocytophilum (30 cases) and Borrelia Miyamotoi (6 cases). According to the results of 2018, the number of carriers of the infectious agents was 158 (33.2%), which of them were females 58 (33.7%), males 2 (40%), nymphs 86 (32.5%), larvae 2 (10.5%).


CONCLUSION
Conclusions: Proceeding from the analysis of the infection frequency of Ixodes ricinus carriers of infectious diseases, it was found out the increase in the number of females and nymphs of borrels carriers, from May to July with an average temperature increase of 18-230С to 25-270С and subsequently a decrease in the frequency of their infection from August to October when the temperature drops to 20-150С.