Navy Lt. Jennifer Knapp, an entomologist with Navy Environmental & Preventive Medicine Unit 5, explains how to utilize specimen containers to Sailors from Marine Expeditionary Units and other public health professions during Preventive Medicine Exercise 2017 at Camp Pendleton, Calif., Nov. 29, 2017. Exercise PREVMEDEX 17 is aimed at enhancing the ability of the Marine Expeditionary Force’s preventive medicine personnel and regional public health professionals to support units operating in austere environments. ( Marine Corps

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