[Epidemiologic aspects of echinococcosis].

The performed studies showed, that morbidity of the population with echinococcosis substantially varies even within the boundaries of any administrative region and depends on a number of factors. According to climato-geographic conditions it is possible to single out three zones: arid zone (deserts, semi-deserts, salt-marshes) with minimal level of invasion of the population with echinococcosis; zone of semi-deserts and alpines with medium level of invasion; and zone of oases, valleys, middle-mountains and tugays--with high level of invasion. Among the risk group--cattle-breeders--2 subgroups could be singled out: steppe and mountains cattle-breeders, the risk of invasion in the laffer subgroup is substantially higher.