Each time he walks into his lab, Ricardo Carrion faces a safety routine of up to half an hour. When he leaves, even just to grab a pen, that routine doubles in length. And every time he goes back in or out, he must follow the same procedures, step by step.rnCarrion, an assistant scientist at the Southwest Foundation for Biomedical Research (SFBR) in San Antonio, Texas, is conducting research on microbes, but not within the comparatively tame confines of a lab bench. He's one of a number of researchers around the globe who go through these procedures several times a day as part of their work investigating ways to protect against bioterrorism and combat infectious diseases.
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