This study provides useful baseline data for guiding future disease control programs.

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Almost every year in Kazakhstan, cases of diseases of animals and people with anthrax are recorded. The incidence rate of people with anthrax in the period from 2000 to 2018 ranged from 0.01 to 0.24 per 100 thousand people. In the territory of the East Kazakhstan region, the incidence rate is higher than in the republic.Objective: a retrospective analysis of anthrax outbreaks in the East Kazakhstan region from 2000 to 2018.Methods: a retrospective analysis using statistical, cadastral data, archival funds, the results of participation in the investigation of outbreaks of infection.Results. Since 1938, cases of animal and human disease of anthrax have been recorded in East Kazakhstan. Infection of humans occurs during the slaughter of animals. In Zharma, Urjar, and Ayagozskiy areas most of all are anthrax foci of soil. In 67 % of cases, outbreaks of anthrax were recorded in these areas.Conclusion. The relative incidence rate of anthrax in people in East Kazakhstan is from 0.07 to 0.27, since 2001 it is higher than the republican indicator.In the East Kazakhstan region from 1997 to 2018, 37 people fell ill with anthrax. The form of the disease is skin, in 8.1 % secondary sepsis. In the remaining patients, the diseases were mild (70.3 %), ended in recovery. The source of human infection is mainly cattle. The isolated strains of B. anthracis have typical properties, they are included in cluster A1a, A3b (MLVA-8). The strains isolated in 2016 are similar to the strains isolated in the Almaty region (MLVA-25). Grouped with a number of European, Asian and African strains from France, Germany, Italy, Tajikistan, Pakistan, Korea and Namibia. The presence of a significant number of soil foci of anthrax in the territory of the East Kazakhstan region, not fully the implementation of veterinary and sanitary preventive measures leads to an exacerbation of the situation for anthrax.

The aim of the study was to clarify the boundaries of the Central Asian natural plague focus of Kazakhstan and the modern boundaries of the areal of the great gerbil (Rhombomys opimus) in order to improve epizootiological monitoring and increase the effectiveness of preventive (anti-epidemic) measures.Materials and methods. Data from the epizootiological monitoring of the great gerbil populations in 14 autonomous foci of the Central Asian desert natural plague focus in the Republic of Kazakhstan between 2010 and 2020 were used for the analysis. An epizootiologic survey of an area of 875350 km2 was carried out. When processing the data, epidemiological, epizootiological, statistical research methods, as well as GIS technologies were used.Results and discussion. An increase in the total area of the Central Asian desert natural plague focus of the Republic of Kazakhstan by 79710 km2 (9.98 %) has been established for the period of 1990–2020. It is noted that the change in the area of plague-enzootic territory was a consequence of the ever changing areal of the main carrier of plague pathogen – the great gerbil – under the influence of climatic and anthropogenic factors. The most significant changes were found in the southeastern part of the plague-enzootic territory, including those for the Betpakdala (50 %), Balkhash (34.3 %), Taukum (13.3 %) and Mojynkum (0.32 %) autonomous foci. The area of the Aryskum-Dariyalyktakyr autonomous focus decreased by 2100 km2 (4 %). In 2000–2002, new Alakol’sky and Ili intermountain autonomous foci with a total area of 26759 km2 were discovered. It is shown that due to the regression of the Aral Sea, the areal of the great girbil expanded and the area of the North Aral and Kyzylkum natural plague foci increased by 10500 km2 (29.2 %) and 560 km2 (0.4%), respectively. The areas of the Aral-Karakum and UralEmba desert autonomous foci, on the contrary, decreased by 2000 km2 (2.6 %) and 12300 km2 (17.6 %), respectively. Passportization and landscape-epizootiologic zoning of the territory of the Central Asian desert natural plague focus of the Republic of Kazakhstan has been completed.