Pork producers now have access to a comprehensive diagnostic kit designed to test production animals for swine influenza virus (SIV) subtypes with the launch of the VetMAX™-Gold SIV Subtyping Kit, the industry’s only USDA-approved, real-time PCR test of its kind.

Swine have a unique role in the transmission of influenza viruses among species. They are the only animal raised in abundance that can both be infected by and transmit virus to other pigs. When housed in close contact, the pig can serve as a biological mixing vessel, where influenza genes from any susceptible species can combine and undergo re-assortment within the animal to emerge as a new subtype. The complexity of swine influenza diagnostics requires a robust molecular subtyping solution for reliable differentiation of the swine H and N subtypes, providing information used to monitor and control the disease.

When used in combination with MagMAX™ Pathogen RNA/DNA Kit and VetMAX-Gold SIV Detection Kit, the VetMAX-Gold SIV Subtyping Kit provides veterinary diagnostic laboratories with a complete screening and subtyping solution that is both rapid and cost-effective. The SIV Detection Kit provides a detection rate of more than 95 percent in positive samples, and can return results in less than a day.

Counted among the top three respiratory health challenges in production animals, SIV is highly contagious, causing fever, lethargy and significant weight loss, resulting in economic loss to producers. Hog production companies have previously estimated the cost of the disease to range from $3.231 to $10.312 per pig as a result of reduced performance or mortality.

Thermo Fisher now offers five USDA-licensed molecular diagnostic tests for customers, more than any other company in the animal health space. Sold under the VetMAX™-Gold name, they include: BVDV PI Detection Kit, SIV Detection Kit, SIV Subtyping Kit, Trich Detection Kit and the AIV Detection Kit.


1 Dykhuis Haden C., T. Painter, T. Fangman, and D. Holtkamp. Assessing production parameters and economic impact of swine influenza, PRRS and Mycoplasma hyopneimoniae on finishing pigs in a large production system. Proceedings 2012 AASV Annual Meeting. 75-76.
2 Donovan, T.S. Influenza isolate selection methodology for timely autogenous vaccine use. Proceedings 2008 Amer Assoc Swine Vet Conf. 557-561.