Porcine Reproductive and Respiratory Syndrome
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Porcine reproductive and respiratory syndrome (PRRS) is becoming one of the most economically significant diseases of swine. It causes weak, stillborn and mummified pigs, and sometimes losses of entire litters. This publication describes the disease and how to prevent its spread.
Lawhorn, D. Bruce (2001). Porcine Reproductive and Respiratory Syndrome. Available electronically from