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Richard Witter is a collaborator at the USDA-Agricultural Research Service Avian Disease and Oncology Laboratory. His discoveries have contributed significantly to the control of Marek’s disease, a virus-induced cancer of poultry, by vaccination. Marek’s disease was the most costly poultry disease worldwide, and his achievements were the first example of practical control of neoplastic disease by vaccination. Dr. Witter is a member of the NAS.

Russ Zajtchuk is professor emeritus in the Department of Surgery at Rush University Hospitals. He is also Chief Executive Officer of Chicago Hospitals International, LLC. Dr. Zajtchuk received all his medical training at the University of Chicago. He spent 28 years in the U.S. Army; his last position in the army was as Commanding General of U.S. Army Medical Research and Materiel Command. Upon retirement from the army he spent five years at Rush University as Vice President for Advanced Technologies and International Health.

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