Sample Study Brian Kearney, a research microbiologist, harvests samples of the coronavirus in a Biosafety Level 3 laboratory at the U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick, Md., March 3, 2020. This virus stock’s purpose is to develop models of infection for coronavirus, as well as diagnostic tests, vaccines and therapeutics. SHARE: Download: Full Size (0.89 MB) Tags: humanitarian aid Credit: William FBill Discher, Army VIRIN: 200303-A-OU321-1002C.JPG Photo Gallery