Flu vaccination drive Published Oct. 19, 2015 By Melanie Moore 79th Medical Wing Public Affairs JOINT BASE ANDREWS, Md -- The 79th Medical Wing will be having a flu vaccination drive on Joint Base Andrews October 20 and 21, 2015. Active Duty personnel and TRICARE beneficiaries (age 9 years and up) can come to the base theater between 8 a.m. to 4 p.m. to receive their vaccinations. Flu vaccines for TRICARE beneficiaries are available on a walk-in basis at the Immunizations Clinic during regular duty hours, 8 a.m. to 3:30 p.m. Pediatric patients can receive their flu vaccine at the pediatrics clinic during walk-in hours from 8 a.m. to 11:30 a.m. and 1 p.m. to 3:30 p.m. No appointment required.