Seneca Valley Virus (SVV) was recently diagnosed in pigs in the United States. The virus has also been found in South America, Australia, New Zealand, and Europe. The virus is a non-enveloped single-stranded RNA virus of the family Picronaviradae. Foot and Mouth Disease Virus (FMDV) and swine vesicular disease virus are also a member of this same viral family. Experts have not been able to determine how SVV is spread between farms, but transportation vehicles is suspected.
Clinical signs of SVV
- Vesicles and coalescing erosions on the snouts and coronary bands
- Acute lameness in a group of pigs
- Ulcerative lesions on or around the hoof wall
- Anorexia, lethargy and/or febrile; in the early course of the disease, fevers up to 105 degrees F have been reported
Since the vesicles are indistinguishable from FMDV, vesicular stomatitis, swine vesicular disease, and vesicular exanthema of swine a foreign animal disease investigation must be done quickly. Please contact your private veterinary if a blister appears on the nose, mouth, or feet.
Hog producers identifying any signs of vesicular disease must immediately report to the State Veterinarian's office at (701)328-2655 or 800-242-7535. Any movement from the farm is temporarily halted until directed by state and federal authorities. Hogs with lesions or any other listed clinical signs should not be taken to slaughter.