Veiste viirushaiguste diagnoosimisest ja nende esinemise sagedusest.
1994
Saar T. | Aaver E.
The purpose of this investigation was to evaluate the spread of some virus diseases of cattle in Estonia. In connection with studies on the epidemiology of virus infections from January 1991 to December 1993 by using of the inoculation of cell cultures a total of 497 cases were examined for evidence of infection with virus diseases. In the present work evidence of infection with IBR/IPV was found in 9.7 per cent, Ad 11.3 per cent, RS 18.7 per cent, VD/MD 13.6 per cent and rotavirus infection 71.9 per cent of the cases. A total of 540 blood samples were examined on the evidence of Ad, IBR, PI-3, RS and VD antibodies. In the blood samples of 277 calves' antibodies to Ad were detected in 30.7 per cent, PI-3 39.8 per cent IBR/IPV 50.2 per cent, RS 1.1 per cent and VD/MD in 4.0 per cent of the investigated cases. The serological evidence of the antibodies in cows was the following: Ad - 61.2 per cent, PI-3 -61.3 per cent, IBR/IPV - 89.4 per cent, RS - 0 per cent and VD/MD - 8.2 per cent. Rotavirus was isolated most frequently as a cause of monovirus infection, then Ad, IBR/IPV and RS.
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