Editor of Pig Progress / Topic: Pigs around the world
Porcine Epidemic Diarrhoea virus (PEDv) can survive over nine months in infected lagoons, according to Canadian researchers.
This was presented at the Joint Annual Meeting for the American Society of Animal Scientists and American Dairy Science Association. This event was held earlier this month in Orlando, FL, United States.
Two PEDv positive farms in Manitoba
The researchers reported on their research, going to two PEDv positive farms in Manitoba, Canada. In their abstract, they describe how the first was infected 20 weeks before the study, and the second was identified during the farm study. They collected lagoon samples over a seven-week period in autumn last year where active viral shedding was present (lagoon 2) or was not present (lagoon 1).
For lagoon 2, spring sampling was conducted in mid-May. Survivability of PEDv was tested for virulent PEDv (subgroup 2a) and the 2014 variant. In total, 99.5% of lagoon samples collected in the fall were positive for virulent PEDv, whereas all samples tested negative for the 2014 variant.