Muskens J, Smolenaars A J G, van der Poel W H M, Mars M H, van Wuijckhuise L, Holzhauer M, van Weering H, Kock P
Tijdschr Diergeneeskd. 2012 Feb;137(2):112-5.
At the end of August and the first two weeks of September 2011 dozens of veterinary practitioners reported to GD Veekijker (Animal Health Service) several dairy herds with cows with sudden decreased milk production, watery diarrhea and sometimes fever. In the beginning these reports came from the Eastern region of the Netherlands, after that also from the other three regions. The percentages of diseased herds per veterinary practice varied from a few till dozens per cent. Extensive bacteriological, virological and parasitological testing of the feces of sick cows did not reveal an infectious cause of the clinical problems. Recently, 50 stored blood samples of clinically diseased cattle were tested for the Schmallenbergvirus using a PCR, and 36% (18/50) tested positive. A large group of control cows (n=115) was also tested with the PCR and all cattle tested negative. Likely the Schmallenbergvirus was the primary cause of the clinical symptoms in the Dutch dairy herds. Further research will be done to confirm this.
2011年8月底至9月的前两周，数十名兽医向荷兰动物卫生服务机构（GD Veekijker）报告了几群奶牛，这些牛群中的奶牛产奶量突然下降、出现水样腹泻，有时还伴有发热症状。起初，这些报告来自荷兰东部地区，之后其他三个地区也有报告。每个兽医诊所患病牛群的比例从百分之几到几十不等。对患病奶牛的粪便进行了广泛的细菌学、病毒学和寄生虫学检测，但未发现导致这些临床问题的感染源。最近，使用聚合酶链反应（PCR）对50份临床患病牛的储存血样进行了施马伦贝格病毒检测，其中36%（18/50）呈阳性。还对一大组对照奶牛（n = 115）进行了PCR检测，所有奶牛检测结果均为阴性。施马伦贝格病毒很可能是荷兰奶牛群临床症状的主要病因。将开展进一步研究以证实这一点。
