St. Mark the Evangelist is hosting a vaccination clinic sponsored by the Onondaga County Health Dept. It will be held from 11:30 a.m. to 1:30 p.m. on Wednesday, Aug. 25. It will be the first dose of the Pfizer shot and will be by WALK-IN ONLY. The vaccine is available to anyone 12 years and older. The second dose will be administered on Wednesday, Sept. 15.