Flu-like illness accounts for 0.4% of emergency department visits in Ramsey, Chisago, Dakota and 1 more county for the week of September 20. Flu-like illness activity in Ramsey, Chisago, Dakota and 1 more county is rising compared with recent weeks. The highest reading in the current data window is 0.4%.

Emergency department visits for influenza in your local area, from CDC surveillance data.