181204-Z-HN461-0002
Master Sgt. Colton Guilliams, the 189th Medical Group noncommissioned officer in charge of public health, troubleshoots one of the three ventilators brought in from the neonatal intensive care unit at a hospital in Retalhuleu, Guatemala. Guilliams is a drill status Air National Guard member who works as a biomedical technician in his civilian capacity. (U.S. Air Force photo by Tech. Sgt. Jessica Condit)