Shors, Teri Department of Biology and Microbiology, University of Wisconsin, Oshkosh, Wisconsin.
- Investigation of the mysterious cattle disease
- A new symptom raises concerns
- Schmallenberg virus spreads through Europe
- Reasons for the rapid spread
- Economic impact of the Schmallenberg virus
- Controlling future outbreaks
- Links to Primary Literature
- Additional Readings
In August–September 2011, dairy cows on farms in Germany and the Netherlands were sick with fever [40°C (104°F)], loss of appetite, and diarrhea, and they had up to 50% reductions in milk production. The symptoms were similar to those of the bluetongue virus infections that caused a major epizooty from 2006 to 2009 in Europe. An epizooty is an epidemic among large numbers of animals in a defined location. Farmers feared that this was the reemergence of a bluetongue virus outbreak. To their surprise, the cattle tested negative for endemic or emerging viruses such as bluetongue virus, bovine herpesvirus type-1, malignant catarrhal fever virus, bovine diarrhea virus, foot-and-mouth disease virus, epizootic hemorrhagic disease virus, Rift Valley fever virus, and bovine ephemeral fever virus.
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