John graduated from the University of Queensland in 1979 and worked in mixed practice for three years, followed by a PhD in immunology at the Australian National University, Canberra. He has over 25 years' experience as a veterinary pathologist, with the Victorian Department of Primary Industries, on faculty at Texas A&M University and (since 1995) in various private veterinary pathology laboratories.

 

John is a Fellow of the Australian College of Veterinary Scientists, a Diplomat of the American College of Veterinary Pathologists, and has adjunct professorial appointments at the University of Queensland and Texas A&M University. His special interests include liver, gastrointestinal and skin pathology, infectious diseases and toxicology.