At least four chains of Chicago community health centers, which collectively serve about 80, 000 low-income patients, will require their workers to get COVID-19 vaccines, they announced Thursday. Esperanza Health Centers, Alivio Medical Center, AHS Family Health Center and CommunityHealth will require employees to get their first vaccine doses by Sept.... Together, the centers have more than a dozen clinics across the Chicago area where patients can see primary care doctors and access other hea