Mycoplasma-associated arthritis: Critical points for diagnosis

Abstract

Mycoplasma hyosynoviae and Mycoplasma hyorhinis are known causative agents of arthritis in postweaned swine. Data from the Iowa State University Veterinary Diagnostic Laboratory shows that diagnosis of M hyosynoviae- and M hyorhinis-associated arthritis has increased in swine in the Midwest United States. This diagnostic note summarizes disease characteristics of both pathogens and describes appropriate procedures to diagnose Mycoplasma-associated arthritis. An accurate diagnosis is critical to establishing effective treatment and prevention measures in affected herds.