Mycobacterial infections in cattle in the Czech Republic during 1990-1999
2002
Pavlik, I. | Dvorska, L. | Matlova, L. | Svastova, P. (Vyzkumny Ustav Veterinarniho Lekarstvi, Brno (Czech Republic)) | Parmova, I. | Bazant, J. | Veleba, J.
The aim of the present study was to analyse the results of tuberculin testing and postmortem diagnoses of bovine tuberculosis in cattle between 1990 and 1999. From 1991 to 1999 a total of 1,457 (0.01 %) animals reacted positively with bovine tuberculin and 1,790 (0.29 %) with avian tuberculin. Mycobacteria were isolated from the organs of 561 out of 3,202 culturally examined animals. M. bovis was isolated from 8 animals originating from seven herds (two infected herds in 1991, 1992, and 1994, and one infected herd in 1995): four outbreaks were detected by annual skin testing, one outbreak by movement tuberculin skin testing, and two outbreaks by the detection of tuberculous lesions at slaughter. M. avium complex strains of serotypes 1, 2, and 3, and of genotypes IS901+ and IS1245+ were isolated from 331 animals and strains of serotypes 4 to 6, 8 to 11, 21, and of genotypes IS901- and IS1245+ were isolated from 132 animals. Potentially pathogenic bacteria of the M. chelonae, M. terrae, M. phlei, and M. fortuitum species were isolated from 50 animals. Neither miliary nor generalised tuberculosis was found in any of the animals. Between 1996 and 1999, the proportion of cattle in which tuberculous lesions were recorded decreased.
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