U.S. Navy Hospital Corpsman 3rd Class John Farley, left, assigned to Naval Amphibious Base Coronado, and Hospitalman Emmanuel Acosta, right, assigned to Naval Branch Health Clinic North Island, move a mannequin during decontamination training at Naval Medical Center San Diego in San Diego, Calif., Aug. 22, 2013. The annual first receiver operations training is a two-day event that each team member must complete to receive certification.