I have 13 years of experience, and specialize in the field of veterinary pathology and diagnostics with specific knowledge in the areas of E coli O157, cytauxzoon and aflatoxin. I have published on such topics as E coli O157, cytauxzoonosis and histoplasmosis. I have testified on aflatoxin contamination of feed and effects on livestock, animal abuse or neglect and livestock parasites. I teach numerous veterinary courses in pathology, infectious diseases, emerging diseases, foreign animal diseases, and diagnostic pathology and medicine.