(Lodi) The Columbia County Health Department will be hosting a free walk-in Johnson and Johnson vaccine clinic next week Thursday. County health officials say appointments are not necessary, however people can register ahead of time online. Those interested must be 18-years-of-age and be able to stay on site for a 15-minute observation period after receiving their shot. The public is asked to practice social distancing and wear a mask. The clinic will be held at the Lodi United Methodist Church on 130 Locust Street from 10am to 6pm. To register visit vaccine-dot-WI-gov.