Funding for this research was provided by:
Boehringer Ingelheim (PRRS European Research Award 2016)
Received: 12 November 2018
Accepted: 10 February 2019
First Online: 19 February 2019
: Animals participating in this survey were commercial pigs kept on farms in accordance with French regulations and standards for pig breeding and rearing. Approval of the Ethics committee was not considered necessary as oral fluid collection is not invasive, not painful and pigs were not forced to interact. No other procedures were applied on the animals during the course of this study and blood samples included in the study were derived from routine veterinary work. Consent was obtained from herd owner.
: All authors gave their consent for publication.
: The authors declare that they have no competing interests.
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