Production losses from a recombinant PRRSv outbreak

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

This week, we are bringing to you a summary from a publication by the SEGES Danish Pig Research Centre and the University of Copenhagen in Denmark. The study published in Porcine Health Management describes production losses associated with a recombinant PRRS strain in breeding herds.

Key Points

  • A new PRRS-1 recombinant between two vaccine strains variant was reported.
  • This variant was detected in a boar station and affected breeding and production herds.
  • Production losses associated with this variant in the production herds comprised a decrease in liveborns/litter and in weaned/litter, as well as an increase in stillborn/litter which was higher than observed in previous Danish PRRS outbreak reports.
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