Porcine Respiratory Disease Complex (PRDC) results from a combination of infectious agents and environmental stressors and challenges, affecting the health of the pig and resulting in reduced performance, increased medication costs and increased mortality.When PRDC breaks out on a unit typically 30-70% of pigs will be affected, with a mortality rate of 4-6%, or more depending on the secondary infections. Porcine Respiratory Disease Complex (PRDC) results from a combination of infectious agents and environmental stressors and challenges, affecting the health of the pig and resulting in reduced performance, increased medication costs and increased mortality.When PRDC breaks out on a unit typically 30-70% of pigs will be affected, with a mortality rate of 4-6%, or more depending on the secondary infections.