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Swine Health

Reporting of Diseases

Porcine Epidemic Diarrhea Virus (PEDv)

PEDv is a viral disease from the family Coronaviridae. PEDv is not a zoonotic disease and is not a food safety concern. Clinical signs of the disease include severe diarrhea, vomiting, and death loss. The disease is most severe in young piglets, but can affect pigs of any age. Older pigs usually recover from the disease within 7-10 days. The virus is transmitted via the fecal-oral route. Contaminated clothing, boots, trucks, equipment, and other fomites have been implicated as vehicles for spreading the disease. Robust biosecurity measures are an important tool in preventing the spread of this disease.

PEDv was first recognized in the UK in 1971 and has spread through parts of Europe and Asia. It was first reported in the US on May 17, 2013 and quickly spread to 27 states within a year.

PEDv is a reportable disease in South Dakota and the SD AIB is currently monitoring the disease. Since PEDv can cause high mortality, up to 100% in young pigs, the disease drastically affects herd health and the producer’s profitability. As partners in protecting the health of pigs in South Dakota, the SD AIB continues to work with the South Dakota Pork Producers Council, pork producers, and veterinarians to address the disease.

Porcine Reproductive and Respiratory Syndrome (PRRS)

PRRS is a viral disease from the family Arteriviridae. The disease occurs in all age groups of swine. Reproductive deficiency or failure is seen in sows and gilts while infected boars will have poor semen quality. The respiratory syndrome is seen more often in young growing pigs but can also occur in finishing pigs and breeding stock. The virus is transmitted by direct contact and is found in nasal secretions, urine, semen, mammary secretions, and feces. As with any disease, biosecurity measures are helpful to prevent introduction and spread of the disease.

The clinical disease was first described in the US in 1987 in a few states. During the 1990’s PRRS spread through Europe and North America.

There has been much research focused on the PRRS virus in the last 20 years, which has contributed to the development of strategies to prevent and control the disease in all types of swine operations. PRRS continues to be of importance to the swine industry due to its effects on herd health and subsequent economic impact.

SD AIB PRRS Pamphlet