title: Foci of yersiniosis infections in the Crimean Peninsula
abstract: Introduction. A significant increase in morbidity and a high rates of infection among small mammals in a number of areas have determined a significant worsening of the epidemiological situation with yersiniosis. Objective. To determine the actual boundaries of natural and anthropurgical yersiniosis foci in the Crimean Peninsula. Materials and methods. 21 administrative districts of the Crimean Peninsula were surveyed. The study of collected samples was carried out according to approved methods. 
journal: Journal of microbiology epidemiology immunobiology