Pedersen, K. S.N. Bevins, J.A. Baroch, J.C. Cumbee, Jr., S.C. Chandler, B.S. Woodruff, T.T. Bigelow, and T.J. DeLiberto. 2013. Pseudorabies in feral swine in the United States, 2009-2012. Journal of Wildlife Diseases 49(3):709-713. doi: 10.7589/2012-12-314.
Although pseudorabies virus can affect a wide range of mammalian and avian hosts, swine are the only natural hosts of the virus. The US commercial swine industry obtained pseudorabies-free status in 2004, which was important because of the economic value of domestic swine production; however, feral swine remain competent hosts and represent a constant threat for reintroducing the virus into the commercial industry. To better assess feral swine infection status, we collected 8,498 serum samples from feral swine across the United States between 1 October 2009 and 30 September 2012. Of these, 18% were antibody positive in 25 of 35 states where samples were collected, indicating that transmission risk is widespread.
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