https://news.wttw.com/2025/12/30/flu-activity-increases-chicago-suburban-cook-county-during-holiday-season-health
Flu Activity Increases in Chicago, Suburban Cook County During Holiday Season: Health Officials
Flu activity in suburban Cook County jumped from “low” to “high” during the week ending in Dec. 20, according to health officials. Chicago’s public health department reported “high” levels of emergency department visits and hospitalizations for flu late last week.









