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To: Washington 9. From: Washington neil Re: 279A-WF-222936-USAMRIID, 01/06/2005 RMR 29 is a spore preparation acquired from Dr. Bruce E. Ivins, Bacteriology Division, U.S. Army Medical Research Institute of Iptect ious Diseases (USAMRIID), Fort Detrick, Maryland. The spore preparation has beer reported on numerous having of suspension. Fourteen (14) days re viability count of the RMR 1029 at NMRC determined the viability to sequent to receiving the RMR 1029 Vins, independent and unaware of NMRC's results, eo and found it to be a_s after removing RMR 1029 from USAMRIID to the Naval Medical Research mter (NMRC), taken from solution RMR were returned to Dr. Ivins. Within this time, material, Dr. performed a viabilit A direct count was performed byl stant Special agent) serial dilutions used to i lahili ound there to be has prepared at least spore preparations of/the Ames strain of Bacillus anthracis, using different medial. Some insight can be gained into the range of viabilities across\ different media upon comparing the spore viability against total spore counts for each of these preparations. b6 b7c bUF