Vaccine Prep Air Force Senior Airman Domingo Rodriguez, an aerospace medical technician with the Puerto Rico Air National Guard, administers COVID-19 vaccines in Carolina, Puerto Rico, Feb. 16, 2021. Airmen are helping to vaccinate residents of Puerto Rico at mass vaccination distribution sites. SHARE: Download: Full Size (1.34 MB) Tags: Health, Air Force, national guard, Coronavirus, covid19vaccine Credit: Air Force Senior Airman Víctor Colón, Puerto Rico Air National Guard VIRIN: 210217-Z-BT672-0003.JPG Photo Gallery