|Issue № 2||
|PhD, FKUZ Stavropol Anti-Plague Institute of Rospotrebnadzor, White6779@yandex.ru|
|Doctor of Biol. Sciences, FKUZ Stavropol Anti-Plague Institute of Rospotrebnadzor, firstname.lastname@example.org|
|PhD, FKUZ Stavropol Anti-Plague Institute of Rospotrebnadzor, email@example.com|
Summary: The analysis of the infection of small mammals with tularemia on the territory of the Stavropol region for the period 1938-2020 was carried out. It is shown that the dynamics of the activity of the natural focus of tularemia is characterized by the change of intense epizooties and inter- epizootic periods. The method of autocorrelation analysis revealed the absence of periodicity in the manifestations of epizootic activity and the presence of cycles lasting 21 years, 12-13 years and 6-8 years. Epizooties are characterized by high intensity (10-30% of infected animals). The main mammalian species supporting the epizootic process were identified. A repeated change of the main carriers of the tularemia microbe during the studied period of time was established, while two species – the house mouse (Mus musculus) and the common vole (Microtus arvalis) are intensively involved in epizooties throughout the entire examination period. Basically, the species involved in epizooties belong to the first group of highly susceptible and highly sensitive to the mammalian tularemia microbe, at the same time, the results of the study revealed a high infection rate of the lesser white-toothed shrew (Crocidura suaveolens), which belongs to the second group of highly susceptible but insensitive animals. Probably, due to the intensification of human agricultural activity, there has been a change in the structure of the natural focus of tularemia, in particular, the species composition of the main carriers of infection, which led to a decrease in its activity.
© Petrozavodsk State University
Received on: 14 December 2021
Published on: 10 July 2022
Dolgushevskiy F. G. Kozlov V. S. Polushin P. I. Erlih Ya. M. General Theory of Statistics. M.: Statistika, 1967. 382 p.
Federacii G. G. Methodological guidelines 3.1.2007-05. Epidemiological surveillance of tularemia. URL: https://ohranatruda.ru/upload/iblock/d8a/4293851725.pdf?ysclid=l4pgbil0d1453201263.
Ioff I. G. A brief overview of tularemia prevalence in Stavropol Region and adjacent areas from 1939 to 1942, Perenoschiki OOI i bor'ba s nimi: Sbornik nauch. rabot. Stavropol', 1970. P. 499–528.
Lakin G. F. Biometrics. M.: Vysshaya shkola, 1990. 352 p.
Levchenko B. I. Environmental factors affecting the existence of tularemia natural focus: Avtoref. dip. ... kand. biol. nauk. Stavropol', 2005. 27 p.
Methodological guidelines 3.1.1029-01. Catching, recording and predicting the number of small mammals and birds in natural foci of infections. URL: https://docs.cntd.ru/document/1200038951?ysclid=l4pgaifqwp939595022.
Olsuf'ev N. G. Dunaeva T. N. Natural focality, epidemiology, and tularemia prevention. M.: Medicina, 1970. P. 22–35.
Pilipenko V. G. Schekina T. A. About recurring widely distributed tularemia epizootics in a steppe-type natural focus and their significance in focus maintenance, Osobo opasnye infekcii na Kavkaze: Tezisy dokladov 4-y kraevoy nauch, prakt. konf. po prirodnoy ochagovosti, epidemiologii i profilaktike osobo opasnyh infekcionnyh bolezney. Stavropol', 1978. P. 70–73.
Pilipenko V. G. T A. Golubev P. D. Tiflova L. A. Factors of the natural tularemia focality in the area of intensive agriculture in Stavropol Region, Trudy nauchno-issledovatel'skogo protivochumnogo instituta Kavkaza i Zakavkaz'ya. Stavropol', 1959. Vyp. 2. P. 295–339.
Popova A. Yu. Mefod'ev V. V. Stepanova T. F. Ezhlova E. B. Demina Yu. V. Marchenko A. N. Epidemiology and prevention of tularemia in the endemic territories of Russia. Tyumen': Izdatel'skiy centr TGU, 2016. 332 p.
Tarasov M. P. Pilipenko V. G. Schekina T. A. Tiflova L. A. To epizootology of tularemia in a steppe-type natural focus in Central Ciscaucasia. Report 1. Rodent abundance and manifestations of tularemia epizootics, Osobo opasnye infekcii na Kavkaze: Tezisy dokladov 4-y kraevoy nauch, prakt. konf. po prirodnoy ochagovosti, epidemiologii i profilaktike osobo opasnyh infekcionnyh bolezney. Stavropol', 1978. P. 82–84.
Tarasov M. P. Natural foci of tularemia in the Caucasus: Avtoref. dip. ... d-ra biol. nauk. Saratov, 1991. 31 p.
Tihenko N. I. Tarasov M. P. Bryuhanov A. F. Levchenko B. I. Results of bacteriological research for tularemia of mouse-like rodents in the natural focus of the Stavropol region, Sovremennye aspekty prirodnoy ochagovosti, epidemiologii i profilaktiki osobo opasnyh infekcionnyh bolezney. Stavropol', 1993. P. 288–289.