Pig health assurance – underlying principles and future direction

DL Hank Harris : Department of Animal Science, College of Life Sciences and Agriculture and Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University , Ames, IA, USA Abstract The work of Tom Alexander centered on controlling swine diseases to benefit the breeding stock and commercial pig producer; and his discoveries and keen insight led to the principles of health assurance used world-wide in the industry today. An overview of his contributions