Seroprevalence of Schmallenberg Virus Antibodies among Dairy Cattle, the Netherlands, Winter 2011–2012

Abstract

Infections with Schmallenberg virus (SBV) are associated with congenital malformations in ruminants. Because reporting of suspected cases only could underestimate the true rate of infection, we conducted a seroprevalence study in the Netherlands to detect past exposure to SBV among dairy cattle. A total of 1,123 serum samples collected from cattle during November 2011-January 2012 were tested for antibodies against SBV by using a virus neutralization test; seroprevalence was 72.5%. Seroprevalence was significantly higher in the central-eastern part of the Netherlands than in the northern and southern regions (p<0.001). In addition, high (70%-100%) within-herd seroprevalence was observed in 2 SBV-infected dairy herds and 2 SBV-infected sheep herds. No significant differences were found in age-specific prevalence of antibodies against SBV, which is an indication that SBV is newly arrived in the country.

DOI: 10.3201/eid1807.120323

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@inproceedings{Elbers2012SeroprevalenceOS, title={Seroprevalence of Schmallenberg Virus Antibodies among Dairy Cattle, the Netherlands, Winter 2011–2012}, author={Armin R. W. Elbers and Willie Loeffen and Sjaak Quak and Els A. de Boer-Luijtze and Arco N. van der Spek and Ruth J. Bouwstra and Riks A. Maas and Marcel A.H. Spierenburg and Eric P. de Kluijver and Gerdien van Schaik and Wim H. M. van der Poel}, booktitle={Emerging infectious diseases}, year={2012} }