*Porcine Reproductive and Respiratory Syndrome (PRRS) (Lelystad virus, Blue ear) in [[Lungs - inflammatory#Infectious causes of pneumonia|pneumonia]], see [[Respiratory Viral Infections - Pathology#Porcine reproductive and respiratory syndrome|PRRS]] | *Porcine Reproductive and Respiratory Syndrome (PRRS) (Lelystad virus, Blue ear) in [[Lungs - inflammatory#Infectious causes of pneumonia|pneumonia]], see [[Respiratory Viral Infections - Pathology#Porcine reproductive and respiratory syndrome|PRRS]] |