9/24/2012 - Donna Vanarsdall, 2nd Medical Group immunization clinic, receives an injection the of flu vaccine from Senior Airman Alexander Roberts, 2 MDG immunization clinic, on Barksdale Air Force Base, La., Sept. 24. Team Barksdale members began recieving their annual flu immunizations so they stay healthy and remain mission ready. Normally the vaccines are given as a nasal mist spray, but certain individuals get a traditional needle depending on various factors. (U.S. Air Force photo/Airman 1st Class Andrew Moua)(RELEASED)

9/24/2012 - Flu vaccines wait to be administered on Barksdale Air Force Base, La., Sept. 24. The clinic is administering the first wave of flu vaccines Sept. 24 and 25 and a second wave Oct. 2-4 and a final wave Oct. 9-11 to ensure all of Team Barksdale is vaccinated to ensure mission readiness. (U.S. Air Force photo/Airman 1st Class Andrew Moua)(RELEASED)

9/24/2012 - Airman 1st Class Stephen Sly, 2nd Communications Squadron, receives a flu mist vaccine from Senior Airman Alexander Roberts, 2nd Medical Group immunizations clinic, on Barksdale Air Force Base, La., Sept. 24. The clinic is administering the first wave of flu vaccines Sept. 24 and 25 and a second wave Oct. 2-4 and a final wave Oct. 9-11 to ensure all of Team Barksdale is vaccinated to ensure mission readiness. (U.S. Air Force photo/Airman 1st Class Andrew Moua)(RELEASED)