Which disease is characterized by high fever and respiratory symptoms in pigs?

The disease characterized by high fever and respiratory symptoms in pigs is Swine Influenza. This viral infection, caused by influenza A viruses, is known for causing respiratory distress and systemic illness in swine. Infected pigs may exhibit clinical signs such as sudden onset of fever, coughing, nasal discharge, and difficulty breathing. The impact of the disease can lead to significant morbidity in herds, resulting in decreased productivity and weight gain.

Other diseases listed may also affect pigs, but the specific combination of high fever and respiratory symptoms aligns most closely with Swine Influenza. For instance, while Porcine Reproductive and Respiratory Syndrome (PRRS) does cause respiratory issues, it primarily affects reproductive performance and causes different symptoms. Porcine Parvovirus primarily leads to reproductive failures rather than respiratory illness. Foot-and-Mouth Disease (FMD) can affect respiratory health and cause fever, but it is more known for causing lesions and severe economic impacts due to its contagious nature. Thus, Swine Influenza is distinctly recognized for the specific symptoms it causes in pigs related to high fever and respiratory distress.