Analysis of the epizootiologic situation in livestock and free-living wildlife in the Bieszczady Mountains in relation to the occurrence of tuberculosis in European bison (Bison bonasus)

Abstract

The epizootiologic analysis were out on livestock and free-living wildlife in the Bieszczady Mountains. The aim of this study was to determine the frequency of positive results in certain diseases within 18 years of observation. The percentage of infected livestock and free-living wildlife amounted to: rabies virus (12.1% and 47.0%), BVDV – bovine – 5.1%, 9.25% and 11.1% red deer and roe deer. Aujeszky’s disease virus was found in 6.3% of pigs, 6.1% of wild boars, L.interrogans in cattle (16.9%), deer (28.6%) and roe deer (22.2%). B.abortus infection demonstrated only in farm animals (0.006%). We found a lack of antibodies to virus of classical swine fever BHV-1. Moreover, studies have shown cases of occurrence of M.bovis infections in 7 cows, 7 bison and a badger. M.tuberculosis infection was also found in 3 of wolves and cow. Studies suggest the possibility of transmission of infectious agents of livestock in the free-living wildlife. The occurrence of infection in free-living animals is a current problem
and for this purpose it is necessary to become health control of these animals.