Some Milwaukee-area hospitals say they're making changes to reduce the risk of the local health care system being overwhelmed with COVID-19 patients. But there's concern about health care workers being able to stay at their jobs. The state of Wisconsin reported 4,389 more confirmed COVID-19 cases Monday, bringing the number of active cases in the state to 70,205. The large firm Advocate Aurora Health, which operates St. Luke's, Sinai and several other hospitals, said it is not at capacity. But