At Laurel Hill Elementary School in Hanover Park, music teacher Lynne Schefke, who normally works at Huff Elementary School in Elgin, dismisses her students after substitute teaching in a dual language kindergarten classroom on Jan. 4, 2022. A surge of COVID-19 cases forced Elgin-based Unit School District 46 to close five of its 57 schools due to staffing shortages, including Huff Elementary. (Chicago Tribune)