 In February, March, and April 1965 Johnston Atoll was used to launch biological attacks against U.S. Army and Navy vessels south-west of Johnston island in vulnerability, defense and decontamination tests conducted by the Deseret Test Center during Project SHAD under Project 112.Test DTC 64-4 (Deseret Test Center) was originally called "RED BEVA" (Biological EVAluation) though the name was later changed to "Shady Grove", likely for operational security reasons.The biological agents released during this test included "Francisella tularensis" (formerly called "Pasteurella tularensis") (Agent UL), the causative agent of Tularemia; "Coxiella burnetii" (Agent OU), causative agent of Q fever; and "Bacillus globigii" (Agent BG).