Col. Michael Grismer, 436th Airlift Wing commander, receives his annual influenza shot from Senior Airman Jeffrey Utz, 436th Medical Operations Squadron allergy and immunizations technician, Aug. 6, 2014, at the 436th Immunizations Clinic on Dover Air Force Base, Del. The clinic administered more than 6,000 flu vaccines to active duty, retirees and dependents. (U.S. Air Force photo/Airman 1st Class William Johnson)