Children and youth under the age of 18 can receive the flu vaccine at Landstuhl Regional Medical Center on Fridays starting Oct. 25. The hospital’s allergy and immunization clinic will offer this year’s flu shot on a walk-in basis every Friday from 8:30 a.m. to 11:30 a.m. and 1:30 p.m. to 3:30 p.m. The shot won’t be available on Nov. 29, Jan. 17, Feb. 14 and March 28.