Background on PEDV
- The Porcine Epidemic Diarrhea Virus (PEDV) is caused by a coronavirus that is related to the transmissible gastroenteritis (TGE) virus.
- PEDV only infects pigs (NOT humans or other livestock).
- This is a new virus in the U.S., first confirmed on May 17, 2013.
Clinical Signs of PEDV
- In previously naïve herds, PEDV is similar to TGE and includes:
- Severe diarrhea in pigs of all ages
- Vomiting
- High mortality - almost 100% in pre-weaned pigs
- Diagnosis: Requires sample submissions to a diagnostic laboratory (contact your veterinarian).
- Transmission: Oral contact with contaminated feces. The most common sources of infected feces are pigs, trucks, boots, clothing or other fomites.
- Incubation period: (time from exposure to clinical signs) Only 12-24 hours.
- Shedding: (amount of time animals can infect others) Up to 3 to 4 weeks.
Immunity/Protection from PEDV
- No cross-protection between TGE and PEDV, even though both are Coronaviruses.
- Maternal protection through colostrum from previously exposed sows can be quite effective.
- No protection is long-lasting (herds can re-break).
- Vaccine studies are in progress.
Treatment for PEDV
Supportive care through hydration. Provide a clean, dry, draft-free environment with access to high-quality drinking water (electrolytes may be beneficial).
Preventing PEDV
Limit cross-contamination with any suspected pigs’s feces.
- Clearly define and communicate a Line of Separation which marks the separation between your facility, transport vehicles or the outside/inside of your production site.
- Contact your veterinarian and enhance biosecurity procedures.
- • Biosecurity of transportation vehicles is important; they should be clean, disinfected and dry.
- Several disinfectants have been demonstrated to effectively inactivate PEDV, such as formalin, sodium carbonate, lipid solvents, and strong iodophors in phosphoric acid.
- Replacement breeding stock should originate from a negative herd.
Challenges to Industry
Infection with PEDVs can create tremendous financial losses for a pork producer.
Source: National Pork Producers Council
Related Stories
The USDA Agricultural Outlook Forum highlights modest price support from tighter supplies across cotton, grains, dairy, livestock, and sugar into 2026.
Lori Stevermer with the National Pork Producers Council reacts to the USDA’s speedline proposal, the new Farm Bill’s fix for California’s Prop-12, and other policy developments impacting the pork industry.
Roger McEowen with the Washburn School of Law reviews key highlights from the House Agriculture Committee’s latest farm bill proposal.
The Action Aims to Lower Food Costs for Consumers and Strengthen the Supply Chain
Rising Chinese feed output — especially for swine — signals sustained demand for protein meals and feed inputs, even when meat production growth appears modest.
Livestock Conservancy Senior Program Manager Jeannette Beranger explains the upcoming poultry census and ongoing efforts to preserve rare and heritage poultry breeds raised across the U.S.
Texas Ag Commissioner Sid Miller joins us to discuss the cattle herd rebuild, trade concerns, and how ranchers would define “America First” policy priorities.
Corn demand remains supportive, but weaker soybean buying limits overall export momentum.
The USDA opened a new sterile fly-dispersal facility at Moore Air Base in South Texas to prevent a potential outbreak of New World screwworm and protect the small U.S. cattle herd.
