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. 2009 Aug 22;92(1):31–37. doi: 10.1016/j.prevetmed.2009.07.010

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Copyright © 2009 Elsevier B.V. All rights reserved.

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Fig. 1 — Production stage-specific detection frequencies (nonaplex RT-PCR, DV-PCR) for PRRS EU wild-type virus, PRRSV EU live vaccine virus and PRRSV NA live vaccine virus in a sample of 902 pigs collected between January and December 2007 in North-Western Germany.