genetic diversity of recent bovine viral diarrhoea viruses from the southeast of austria (styria).to characterise the bovine virus diarrhoea virus (bvdv) isolates circulating in the southeastern region of austria, namely in the province of styria, 71 blood samples collected between 1998 and 2000 from persistently infected cattle in 62 herds were subjected to genetic typing. for this, 288bp fragments from the 5' untranslated region (5'-utr) were amplified by polymerase chain reaction after reverse transcription (rt-pcr). the products were sequenced and used for phylogenetic analysis. seventy ...200312458175
bvdv infection risk in the course of the voluntary bvdv eradication program in styria/austria.a total of 1362 persistently bvdv-infected animals were identified in 850 herds during the first 3 years of the voluntary bvdv eradication program in styria/austria. within the same period of time, the prevalence of bvdv-infected herds dropped from 7.3% to 2.2% of the 4412 herds covered by the program. the relative bvdv infection risk decreased at least four-fold in herds on common grazing and at least five-fold in herds which purchased cattle during the first 30 months of the bvd control progra ...200516183155
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