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 initially 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), the causative agent of Q fever; and Bacillus globigii (Agent BG). During Project SHAD, Bacillus globigii was used to simulate biological warfare agents (such as anthrax), because it was then considered a contaminant with little health consequence to humans; however, it is now considered a human pathogen. Ships equipped with the E-2 multi-head disseminator and A-4C aircraft equipped with Aero 14B spray tanks released live pathogenic agents in nine aerial and four surface trials in phase B of the test series from February 12 to March 15, 1965, and in four aerial trials in phase D of the test series from March 22 to April 3, 1965.
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 initially 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), the causativ!e agent of Q fever; and Bacillus globigii (Agent BG). During Project SHAD, Bacillus globigii was used to simulate biological warfare agents (such as anthrax), because it was then considered a contaminant with little health consequence to humans; however, it is now considered a human pathogen. Ships equipped with the E-2 multi-head disseminator and A-4C aircraft equipped with Aero 14B spray tanks released live pathogenic agents in nine aerial and four surface trials in phase B of the test series from February 12 to March 15, :1965, and in four aerial trials in phase D of the test series from March 22 to April 3, 1965.