Prof Gregory C. Gray is an infectious disease epidemiologist and a Professor in the Program in Emerging Infectious Diseases and the Global Health Institute at Duke-NUS Medical School, Singapore. He also serves as a Professor in Division of Infectious Diseases, Global Health Institute, and School of the Environment at Duke University and as a Professor of Global Health at Duke Kunshan University in China. He manages research teams with infectious disease laboratories in China, Singapore, and the USA.
Much of his work has involved identifying risk factors for occupational diseases, particularly for respiratory virus infections. He has studied numerous occupational groups including farmers, animal breeders, veterinarians, military personnel, turkey workers, poultry workers, horse workers, hunters, and pig workers.