Ecological-Epizootiological Differentiation of Natural Plague Foci
https://doi.org/10.21055/0370-1069-2021-4-62-66
Abstract
Plague foci differentiation is at the core of surveillance and forecasting of epizootic activity and hence achieving high effectiveness of prophylactic measures for prevention of human plague cases. Improvement of the plague foci differentiation taking into account recent data on their status and functioning is a relevant objective. The aim of the study was to differentiate natural plague foci according to the significance of ecology factors in the dynamics of epizootic activity. Materials and methods. Various models for forecasting epizootic activity of natural plague foci, based on the consistent statistical pattern recognition procedure were applied. 11 plague focal territories for which predictive models had ever been developed were surveyed. Results and discussion. The plague foci differ by impact of biotic and abiotic factors on epizootic activity. If epizootic activity depends on the biotic factors, forecasting can only be made on the basis of the data obtained directly during epizootiological surveillance. If epizootic activity depends on abiotic factors, such plague foci can be more depended on the global climate change. The put forward differentiation of focal areas allows for searching the common patterns of plague epizootic process in foci with different species of hosts and vectors, plague microbe variants and geographic setting, as well as for additional typification alongside the existing ones.
About the Authors
V. M. DubyanskyRussian Federation
13–15, Sovetskaya St., Stavropol, 355035, Russian Federation
A. Kh. Khalidov
Russian Federation
13, Gagarina St., Makhachkala, 367015, Russian Federation
References
1. Nguyen V.K., Parra-Rojas C., Hernandez-Vargas E.A. The 2017 plague outbreak in Madagascar: Data descriptions and epidemic modelling. Epidemics. 2018; 25:20–5. DOI: 10.1016/j.epidem.2018.05.001.
2. Popov N.V., Karnaukhov I.G., Pakskina N.D., Eroshenko G.A., Kuznetsov A.A., Matrosov A.N., Porshakov A.M., Kouklev E.V., Ivanova A.V., Korzun V.M., Kosilko S.A., Zenkevich E.S., Popov V.P., Lopatin A.A., Ayazbaev T.Z., Balakhonov S.V., Kutyrev V.V. [Analysis of the current epidemiological situation in natural plague foci around the world. Enhancement of the effectiveness of epidemiological surveillance in natural plague foci of the Russian Federation and forecast of their epizootic activity for 2019]. Problemy Osobo Opasnykh Infektsii [Problems of Particularly Dangerous Infections]. 2019; (1):81–8. DOI: 10.21055/0370-1069-2019-1-81-88.
3. Burdelov L.A., editor. [Atlas of the Spread of Particularly Dangerous Infections in the Republic of Kazakhstan]. Almaty; 2012. 232 p.
4. Udovikov A.I., Popov N.V., Samoilova L.V., Tolokonnikova S.I. [Climate and transformation of ecosystems by the example of natural plague foci of South-East of Russia]. Problemy Osobo Opasnykh Infektsii [Problems of Particularly Dangerous Infections]. 2012; (2(112)):21–4. DOI: 10.21055/0370-1069-2012-2(112)-21-24.
5. Rall’ Yu.M. [Natural Focality and Epizootiology of Plague]. Moscow: “Medicine”; 1965. 363 p.
6. Kucheruk V.V. [Structure, typology and zoning of natural foci of human diseases]. In: Petrishcheva P.A., editor. [The Results of the Development of the Doctrine of the Natural Focality of Human Diseases and Further Tasks]. Moscow; 1972. P. 180–212.
7. Sludsky A.A. [Plague Epizootiology (Review of Research and Hypotheses)]. Part 1. Saratov; 2014. 313 p. (Cited 05 Jul 2021). [Internet]. Available from: http://www.microbe.ru/files/Sludsky_Pt1_2.pdf.
8. Dyatlov A.I., Antonenko A.D., Grizhebovsky G.M., Labunets N.F. [Natural Focality of Plague in the Caucasus]. Stavropol; 2001. 345 p.
9. Kozlov M.P., Sultanov G.V. [Plague. Natural focality, Epizootiology]. Vol. 3. Makhachkala; 2000. 303 p.
10. Burdelov L.A. Discussions around plague epizootiology: causes, methods of management and main consequences. Karantinnye i Zoonoznye Infektsii v Kazakhstane [Quarantine and Zoonotic Infections in Kazakhstan]. 2016; 1:3–24.
11. Dubyansky M.A., Kenzhebaev A., Stepanov V.M., Asenov G.A., Dubyanskaya L.D. [Prediction of Plague Epizootic Activity in the Aral Sea Region and Kyzyl Kum]. Nukus: Karakalpakstan; 1992. 240 p.
12. Dubyansky V.M., Gerasimenko E.V., Davydova N.A., Shkarlet G.P., Mozloev G.A., Belogrudov V.A., Vlasov A.A., Tsapko N.V., Belyavtseva L.I., Bammatov D.M. [Forecasting of epizootic activity of the Central Caucasian natural high-mountain plague focus]. Problemy Osobo Opasnykh Infektsii [Problems of Particularly Dangerous Infections]. 2018; (3):50–3. DOI: 10.21055/0370-1069-2018-3-50-53.
13. Gubler E.V. [Computational Methods of Analysis and Recognition of Pathological Processes]. Leningrad: “Medicine”, Leningrad office; 1978. 296 p.
14. Karimova T.Yu. [Typological classification of natural plague foci in the Sahara-Gobi desert region]. Aridnye Ekosistemy [Arid Ecosystems]. 2002; 8(17):13–24.
Review
For citations:
Dubyansky V.M., Khalidov A.Kh. Ecological-Epizootiological Differentiation of Natural Plague Foci. Problems of Particularly Dangerous Infections. 2021;(4):62-66. (In Russ.) https://doi.org/10.21055/0370-1069-2021-4-62-66