Montgomery County health officials will hold two additional flu vaccination clinics for residents who have not yet been vaccinated. The clinics will offer free injectable (shots) vaccinations on Friday, January 18 from 9 a.m. to 12 noon at the Germantown Health Center (12900 Middlebrook Road, Germantown) and on Tuesday, January 22 from 2 to 5 p.m. at the Dennis Avenue Health Center (2000 Dennis Avenue, Silver Spring).