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Fig. 1 | BMC Veterinary Research

Fig. 1

From: Development of within-herd immunity and long-term persistence of antibodies against Schmallenberg virus in naturally infected cattle

Fig. 1

Percentage of anti-SBV antibody positive, doubtful and negative animals among cattle that were sampled for the first time in the respective year. In the December 2011/January 2012 sampling, every animal older than 24 months was included, while thereafter only animals between 24 and 35 months of age were sampled for the first time

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