Amn. First Class Tyree Tresvant, with the 72nd Operational Medical Readiness Squadron, conducts air sampling over a suspected biological warfare agent during a CBRNE exercise Oct. 15. An initial entry team conducts air sampling in every area of a threat to determine how far the threat extends. The team will then conduct an initial sample of the biological agent to determine the type and then set up the equipment needed for the sampling team to come in to conduct further testing. (U.S. Air Force photo/Kelly White)

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Photo by: Kelly White |  VIRIN: 191015-F-RI777-1131.JPG