Vaccine Line Air Force Lt. Col. Elizabeth Hoettels, left, 423rd Medical Squadron commander, administers the COVID-19 vaccine during a mass vaccination line at Royal Air Force Alconbury, England, March 18, 2021. This is the first time the 501st Combat Support Wing has conducted a mass-vaccination line and is expected to vaccinate about 300 people. Multiple airmen and civilians from the 423rd Medical, Civil Engineering, Emergency management and Communication squadrons assisted in helping vaccines be distributed to the pathfinder community. SHARE: Download: Full Size (1.49 MB) Tags: humanitarian aid, Coronavirus, covid19vaccine Credit: Air Force Senior Airman Eugene Oliver VIRIN: 210318-F-VS137-1007C.JPG Photo Gallery