The Baltimore County Department of Health will hold free flu vaccination clinics in locations across the county. At the Drumcastle Government Center, Third Floor, the vaccinations will be administered from 1 to 4 pm every day until Dec. 3, 2010, except for Thanksgiving Day, Nov. 25, 2010 and Friday, Nov. 26, 2010. On Wednesday, Dec. 1, 2010, the vaccinations will be given from 4 pm to 7 pm at the Drumcastle Center on York Road. No appointment is necessary.