[1] It is part of the Porcine Respiratory Disease Complex along with Swine Influenza, PRRS and Porcine circovirus 2, and even though on its own it is quite a mild disease, it predisposes to secondary infections with organisms such as Pasteurella multocida.
Clinical signs are most commonly seen in pigs over 8 weeks of age, and the disease occurs worldwide.
Pigs usually cough and may show more severe respiratory signs if secondary bacteria have invaded.
PCR, ELISA, fluorescent antibody testing and post-mortem findings all help in making the diagnosis.
Tiamulin, chlortetracycline or tilmicosin may be used to treat and prevent the spread of the disease.