 Some Seventh-day Adventists volunteered for the US Army's Operation Whitecoat, participating in research to help others.The Church preferred to call them "conscientious participants", because they were willing to risk their lives as test subjects in potentially life-threatening research.Over 2,200 Seventh-day Adventists volunteered in experiments involving various infectious agents during the 1950s through the 1970s in Fort Detrick, MD."