THE ROLE OF CATTLE CHLAMYDIA IN LUNG DISEASES
Regional variations of cattle chlamydia spread are associated with climatic differences, peculiarities of animals cultivation technology, virus and bacterial diseases at agricultural enterprises (infectious rhinotracheitis, virus diarrhea, a disease of mucous membranes, parainfluenza type 3, pasteurellosis, chlamydia, etc.). However, the listed circumstances can hardly explain all the diversity in the breadth of chlamydia spread. The difficulty of interpreting the existing data exists largely due to the methodological problems arising during the analysis of epizootique research results. First of all, it should be noted that a conception of lung diseases nature changed over the last decade, it was accompanied by a revision of disease definitions, and accordingly diagnostic criteria. Studies conducted in 2010-2012 found out that the disease is widespread in the Sverdlovsk and Chelyabinsk regions, including all clinical forms of chlamydia. Outbreaks of chlamydia were reported in 47 farms located in different geographical areas of two regions. When analyzing the prevalence of chlamydial infections in animals the following disadvantaged municipalities in the Sverdlovsk region were revealed: Artinsky, Achitsky, Baykalovsky, Beloyarsky, Pyshminsky. In the Chelyabinsk region we can name Sosnowsky, Etkulsky, Bredinsky, Satkinsky municipalities. The results obtained from study of chlamydia spread in these areas indicate a need to improve the system of preventive measures against chlamydia.