Milton’s Board of Health said it will only host one general flu clinic this year due to changes in the distribution of the vaccine. This year’s event will occur Thursday from 4 to 7 p.m. at the Senior Center/Council on Aging located on Walnut Street. All Milton residents 4 years old and over are welcome. According to the town’s website, residents should bring insurance cards with them. Those without health insurance will be given a state-supplied vaccine available free of charge. For more information, call the Milton Board of Health at 617-898-4886.