BIOLOGICAL ASPECTS, PROBLEMS OF OPISTHORCHIASIS IN THE CONDITIONS OF KOSTANAY REGION AND NORTH KAZAKHSTAN REGION

Abstract

The article presents data on the analysis of fish infection in Kostanay and North Kazakhstan regions and the results of epidemiological monitoring of the incidence of opisthorchiasis in humans. The fight against zooanthroponous helminthiasis, widespread in the Republic of Kazakhstan, is one of the state tasks in the field of healthcare and veterinary medicine.  The epizootic and epidemiological situation of parasitic diseases such as opisthorchiasis, trichinosis in the Republic of Kazakhstan remains tense and poses a threat to public health. The epizootological and epidemiological situation of opisthorchiasis in the territory of Kostanay and North Kazakhstan regions of the Republic of Kazakhstan in the period from 2011-2022 was studied. The analysis of the current analysis of the parasitological situation in fish (the second intermediate host), in particular for the disease opisthorchiasis, in the period 2011-2022 was carried out. In the muscles of fish (ide) caught in the Zhylanshyk river of the Zhangeldinsky district of the Kostanay region, there are metacercariae of the O. felineus species. At the same time, the extent of the invasion was 6.7% of the total number of fish caught in this river, or 13.3% of the ide caught. It was found that over the past 10 years (2011-2021) 482 and 184 cases of infection with opisthorchiasis were registered, respectively. In Kostanay region, the largest number of cases occurred in 2012 -77 cases.  in the North Kazakhstan region, the maximum number of cases was observed in 2012 and has 28 cases.