(Poynette) The Columbia County Health Department will be hosting a free walk-in COVID vaccine clinic next Thursday, July 15th. County health officials say the clinic will be for a first dose Pfizer shot, available for ages 12-and-up, and a one-and-done Johnson and Johnson shot. The J and J vaccine is only offered to those 18 and older. The second Pfizer dose will be provided on August 5th. Appointments are not necessary to receive the vaccine but people can schedule ahead time. Those interested in going must stay on site for a 15-minute observation period after receiving the vaccine. Health officials also ask those in attendance to practice social distancing and wear a mask. The clinic will be at the Poynette Elementary School at 225 West North Street from 12pm to 6pm. To schedule a vaccine shot visit vaccinate.wi.gov.