Porcine Respiratory Disease Complex (PRDC)
Porcine Respiratory Disease Complex, recognized by various respiratory signs and often resulting in reduced feed efficiency and poor growth, remains a major economic concern in pig farms around the world. The term PRDC refers to the complex mixture of pathogens, environmental, housing, nutritional and management factors, host immune system weakness and genetics resulting in pneumonia in pigs. Some of the pathogens commonly involved in PRDC include Porcine Reproductive and Respiratory Syndrome virus (PRRS), Swine Influenza virus, Porcine Circovirus (Associated) Disease (PCVD), Swine Enzootic Pneumonia and a variety of bacteria, such as Glasser Disease, Porcine pleuropneumonia and Streptococcus suis. PRDC is seldom the result of one pathogen and pathogens involved vary between countries, regions and farms.
"The term Porcine Respiratory Disease Complex (PRDC) emphasizes the complexity of events leading to pneumonia in pigs."