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FD-302a (Rev, 10-6-95) 279A-WF-222936-LEADS Continuation of FD-302 of »On 08/18/2005 __, Page 6 had_good results, and the organism easily survived the process. LI never saw dry samples of organisms at USAMRIID. @ organisms were examined microscopically. The B. anthracis AMES strai Ca orked with Tui USAMRIID. vins did a lot of "spore work". Ivins and| were _ responsible for all of the B. anthracis spore production at USAMRIID. Spore production of sporulating organis e with the information available in t iterature. Ivins make very large _spore preps. was very knowledgeable of spore production, but] never saw him make the preps. Ivins would determine the LD-50 of pathogenic organisms with mice. Ivins used BALB-C and CBA-J mice, per the publications. Because of his work with spores, Ivins would do weekly spore check swipes of the bacteriology suites, and there would occasionally be a small contamination somewhere in the lab (e.g. phone, doorknob) . not aware of anyone lyophilizing B. anthracis at USAMRIID.