Date of this Version
This NebGuide explains Porcine Reproductive and Respiratory Syndrome--its symptoms, transmission and diagnosis; and it discusses methods of prevention, management and control.
Porcine Reproductive and Respiratory Syndrome (PRRS) was first observed in 1986 in the United States and in 1990 in Europe. The syndrome was initially called Mystery Pig Disease in the United States since no known swine pathogens could be implicated. A number of titles have been used to describe this disease syndrome: swine infertility and respiratory syndrome (SIRS), porcine epidemic abortions and respiratory syndrome (PEARS), blue-eared pig disease as well as others. Since 1992, PRRS has been the internationally recognized name applied to the syndrome.