CHARACTERISTICS OF VARIABILITY OF PARASITIC SYSTEMS OF ECHINOCOCCOSIS AND MULTI-CHAMBER ECHINOCOCCOSIS FOR A LONG PERIOD IN THE KYRGYZ REPUBLIC

Abstract

Recently, the epidemic situation for echinococcosis in the Kyrgyz Republic (KR) is quite complicated. For the period from 1990 to 2019, according to the results of a retrospective analysis, in the Kyrgyz Republic – the highest prevalence of the population was recorded in 2014 and amounted to 20,20/0000. The lowest prevalence was in 1990 and the indicator was 5,20/0000. There is a tendency towards an increase in the incidence of echinococcosis of the entire population of the Kyrgyz Republic. The average annual growth rate was 3.5%. The mechanisms of cross-infection of a large biodiversity of intermediate hosts in agricultural and natural ecosystems are realized due to fertile strains of E. granulosus, and are mediated through a circle of definitive hosts. Echinococcosis is a complex parasitic system, the structural components of which are cestodes of the genus Echinococcus at different stages of development, as well as animals and humans, which are the hosts of various stages of the parasite’s life cycle. The population of parasites is an integrating link of the parasitic system formed by a specific population of the parasite and the populations of all hosts that support its existence. The parasitic system is based on the interaction between the populations of the parasite and the hosts, developed in the course of evolution. Key words: cystic echinococcosis, alveolar echinococcosis, parasitic system, characteristics of variability, focus, morbidity