Officials destroyed about 100 hogs on a Callaway County, Missouri hog farm after the herd tested positive for pseudorabies. Feral hogs are suspected to have exposed the herd to the disease, which affects a pig’s central nervous system.
Source: Pork Network, May 13, 2016.
In this particular herd, testing came back as serologically positive and the decision was made to depopulate the herd immediately.