Seroprevalence of Schmallenberg Virus Antibodies among Dairy Cattle, the Netherlands, Winter 2011–2012
Published Date:Jul 2012
Source:Emerg Infect Dis. 18(7):1065-1071.
Communicable Diseases, Emerging
De Boer-Luijtze E
Et Al. Seroprevalence Of Schmallenberg Virus Antibodies Among Dairy Cattle
Suggested Citation For This Article: Elbers ARW
Van Der Spek AN
Winter 2011–2012. Emerg Infect Dis [serial On The Internet]. 2012 Jul [date Cited]. Http://dx.doi.org/10.3201/eid1807.120323
Description: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.
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