[Sources and causes of the origin of new foci of bovine tuberculosis in cattle in Czechoslovakia from 1977 to 1979].
In the years 1977-1979, twenty-eight new foci of bovine tuberculosis in cattle were found in the territory of the CSR; twenty-four foci were recorded in the cooperative sector, four foci in private stables. Most of the foci, i.e. twenty, were observed in agricultural enterprises where bovine tuberculosis had been subdued in the last four years of the nation-wide eradication of the disease. Tuberculinization revealed twelve new origins, veterinary inspection of meat at slaughter-houses 16 origins. Tuberculosis newly occurred in cows housed in cow-houses of older types or old stables. In the twenty-four foci found in the cooperative sector, only in five cases were more than 10% of the cows infected. Various forms of tuberculosis were observed if a greater number of animals suffered from the disease. In individual infections, pulmonary primary complex, or digestive tract, were afflicted. To elucidate the sources and causes of the origin of these foci of tuberculosis, cattle was proved--by anergent--to be the source of six cases, man suffering from bovine tuberculosis in three cases, and in two cases the cause was an uncontrolled purchase of cattle. We failed to find out the source in 17 cases. To maintain the present favorable epizootic situation in bovine tuberculosis, attention should be paid permanently to diagnosing bovine tuberculosis, and especially to elucidating sources of new foci of the disease.
D000818:Animals; D002417:Cattle; D003604:Czechoslovakia; D004197:Disease Reservoirs; D014380:Tuberculosis, Bovine / Q000175:diagnosis / Q000453:epidemiology* / Q000635:transmission
Zdroje a príciny vzniku nových ohnisek bovinní tuberkulózy skotu v CSR v letech 1977 az 1979.