Date Full Report Received09/27/2015
Date Abstract Report Received09/27/2015
Funded ByNational Pork Board
The short term objective of this project was to yield better understanding of the epidemiology and field ecology of PEDv and the relative impact of specific management decisions on the risks of infection. The long term objective was to facilitate business continuity by building capacity to enable the industry to quickly detect and have the ability to respond to an emerging pathogen.
With the assistance of this research project, the Swine Health Monitoring Project (SHMP) currently includes approximately 2.5 million sows and 998 sow herds (approximately 50% of the US sow inventory). The power of the project was exemplified recently when participants agreed to also share frequency of detection of Seneca Valley virus.
Of 429 herds with PED virus that achieved the stable state of weaning PEDv PCR negative pigs, the median time was 28 weeks, ranging from 7 – 64 weeks. A median of 2.7 piglets / inventoried sow were not weaned and the average time required to recover to baseline production was 10 weeks in 183 herds. Herd infected in quarters 3 or 4 of the year had approximately twice the negative impact. These data are valuable for veterinarians in advising clients on the anticipated impact and time to re-achieve a stable state with regards to PEDv.