A new paper from Iowa State University summarizes four studies that evaluated individual aspects of trailer sanitation programs, including thermo-assisted drying and decontamination (TADD) systems and multiple disinfectants in the battle against Porcine Epidemic Diarrhea Virus (PEDV). [Source: National Pork Board]
In general, the researchers concluded that:
- Only two time/temperature combinations studied were 100% successful at eliminating the PED virus:
- 71C (160F) for 10 minutes
- 20C (68F) for 1 week
- Stalosan® F is ineffective at inactivating PEDV from contaminated hog trailers
- Accel® (accelerated hydrogen peroxide) appears to effective at inactivating PEDV in presence of feces
- A wider range of TADD configurations were found to be effective following wash and disinfection with Synergize®
- 20°C for 12h to 68°C for 10m
- Synergize® and wash alone were also effective o Underscores the importance and utility of wash and disinfection steps in trailer sanitation
- Environmental swabs could not differentiate infectious from non-infectious PEDV
- Implications for environmental sampling
To learn more, click to view the practical summary or the full study. Dr. Paul Thomas summarized the studies in a PowerPoint presentation that can be viewed on the AASV website.