Professor of Internal Medicine.
He was the first to describe the special fowl paralysis named after him as Marek disease. Distol, his medication for liver fluke, was one of the most effective remedies of his time. He also made basic discoveries in connection with calcium and phosphorus metabolism disorders. He developed a probe named after him and categorized digestive disorders with colic symptoms in horses into well-distinguishable etiological types.
His ’Veterinary Internal Medicine’, co-authored with Ferenc Hutyra, became a definitive textbook for decades in international veterinary education.
He was an ordinary, later honorary Member, and until his death, Department Chairman of the Hungarian Academy of Sciences. He received posthumous Hungarian Heritage Award.