Dr. Hooser has interacted with veterinarians and animal owners on cases of exposure to a wide variety of poisons. He teaches veterinary toxicology and has given numerous presentations to the public and veterinary professionals. He is professor of Veterinary Toxicology, past-president of the American Board of Veterinary Toxicology, past director of the Animal Disease Diagnostic Laboratory, and the past-president of the American Association of Veterinary Laboratory Diagnosticians.