The change comes as demand for vaccine, which has been acute in the Chicago area during the first few months of its rollout, has winded down and more of the eligible population in suburban Cook County — about one in two — has gotten at least the first dose, Rocha said. Tuesday’s release of appointments at the county’s mass vaccination sites took a few hours to fill up versus a few minutes, which was how long it took a week earlier, Rocha said.
Coronavirus in Illinois updates: Here’s what’s happening Thursday with COVID-19 in the Chicago area
