etiologic agents detected in a 10-year study of bovine abortions and stillbirths.during a 10-year period, specimens from 8,995 bovine abortions were submitted to the south dakota animal disease research and diagnostic laboratory; 8,962 of these specimens were suitable for examination. a supportable diagnosis was made in 2,942 (32.82%) of the abortions examined. an infectious cause was determined for 2,723 (30.38%) and a noninfectious cause for 219 (2.44%). bacteria caused 1,299 (14.49%), viruses caused 948 (10.57%), and fungi caused 476 (5.31%). the infectious bovine rhinotr ...19921616982
bovine viral diarrhea virus outbreak in a beef cow herd in south dakota.136 pregnant beef cows were purchased in the fall of 2003. the following spring, 128 cows calved as expected; 8 cows were believed to have aborted with the fetuses unavailable for evaluation. of the 128 calves born, 8 died within 2 weeks after birth and 9 were born with congenital abnormalities.201526043135
measuring bovine viral diarrhea virus vaccine response: using a commercially available elisa as a surrogate for serum neutralization assays.genetic selection in livestock offers the opportunity to improve bovine viral diarrhea virus (bvdv) vaccine response, but first we must define how vaccine response should be measured. for measuring humoral vaccine response, serum neutralization (sn) measures antibodies that can neutralize bvdv, but relative to enzyme-linked immunosorbent assay (elisa) is time consuming, technically demanding, and expensive. the elisa, however, measures total bvdv-specific antibodies, regardless of whether the an ...201222944626
bovine viral diarrhea virus multiorgan infection in two white-tailed deer in southeastern south dakota.the susceptibility of wild ruminants, especially cervids, to bovine viral diarrhea virus (bvdv) has remained an enigma. two white-tailed deer (odocoileus virginianus) were submitted to the animal disease research and diagnostic laboratory (adrdl) in the fall of 2003 by the south dakota game fish and parks for chronic wasting disease (cwd) testing. both animals were cwd negative. the animals were necropsied and histopathology, viral antigen detection, and virus isolation were performed. a noncyto ...200818689667
trends in the bvdv serological response in the upper midwest.bovine viral diarrhoea continues to be an important disease affecting both beef and dairy animals of all ages. one of the quickest means of measuring bovine viral diarrhoea virus (bvdv) exposure and infection in the herd is a serum neutralization (sn) assay. type 1 and type 2 bvdv sn results from the animal disease research and diagnostic laboratory at south dakota state university were collected over a seven-year period (1995-2001) to determine any trends. these results indicated that in 1996, ...200312770547
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