Capt. Heather Widell, 823d Base Defense Squadron physician’s assistant, unpackages flu shots during a mass flu line Dec. 6, 2019, at Moody Air Force Base, Ga. The 23d MDG annually hosts the mass flu line to help protect active duty Airmen against influenza. The 23d MDG vaccinated 1,476 Airmen during this years event. (U.S. Air Force photo by Airman 1st Class Jasmine M. Barnes)