Seroprevalence of Schmallenberg Virus Antibodies among Dairy Cattle, the Netherlands, Winter 2011–2012
Armin R.W. Elbers , Willie L.A. Loeffen, Sjaak Quak, Els de Boer-Luijtze, Arco N. van der Spek, Ruth Bouwstra, Riks Maas, Marcel A.H. Spierenburg, Eric P. de Kluijver, Gerdien van Schaik, and Wim H.M. van der Poel
Author affiliations: Central Veterinary Institute, part of Wageningen UR, Lelystad, the Netherlands (A.R.W. Elbers, W.L.A.Loeffen, S. Quak, E. de Boer-Luijtze, R. Bouwstra, R. Maas, E. P. de Kluijver, W.H.M. van der Poel); Netherlands Food and Consumer Product Safety Authority, Utrecht, the Netherlands (A.N. van der Spek, M.A.H. Spierenburg); GD Animal Health Service, Deventer, the Netherlands (G. van Schaik)
Figure 1. . . . Geographic distribution of dairy herds from which 1–4 animals were sampled (red dots) in study of Schmallenberg virus seroprevalence, the Netherlands, 2011–2012. Cattle density is indicated by gray shading; blue outlines denote regional borders.
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