By TJ Photo: Winona Health WINONA, Minn. (KWNO)-Winona Health will hold a schedule and walk-in COVID-19 vaccine clinic on Thursday from 1-6 p.m. The clinic is open to anyone ages 12 and older. Officials will administer the Pfizer vaccine at the Parkview Office building on the Winona Health Mankato Ave. campus. The vaccination clinics could become an item of the pass. Winona County held its last mass clinic for first shots last week. Winona Health President and CEO Rachelle Schultz says they will keep the mass clinics going until there’s a drop off of people arriving for a shot.