Tech Work U.S. Air Force Tech. Sgt. Kathryn Pena draws up a vaccine into a syringe at March Air Reserve Base, California, Nov. 4, 2018. SHARE IMAGE: Download Image: Full Size (3.97 MB) Photo By: Air Force Tech. Sgt. Julianne Showalter, Air Force Reserves VIRIN: 181104-Z-RZ465-1028.JPG Photo Gallery