Half of Cook County suburban mass vaccination sites closing as health officials say hyperlocal focus needed for hard-to-reach population

Cook County’s six mass vaccination sites began late January with the Tinley Park site. Since then, five more locations have cropped up to give out a total 578,222 doses as of Sunday. Des Plaines had the most shots given out at 165,126, then it was Tinley Park at 135,510, Forest Park at 123,667, South Holland at 71,346, River Grove at 60,239 and Matteson at 22,334, though the last site opened the latest on April 14.