1. School of Clinical Veterinary Science, University of Bristol, Bristol, North Somerset, United Kingdom
2. Mycoplasma Group, Department of Bacterial Diseases, Veterinary Laboratories Agency, Weybridge, Surrey, United Kingdom
3. Department of Microbiology & Immunology, College of Medicine, State University of New York, Brooklyn, New York
4. Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado
5. Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
6. Clinical Laboratory, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland