Flu-like illness accounts for 0.6% of emergency department visits in Multnomah, Clackamas, Clatsop and 2 more counties for the week of September 20. Flu-like illness activity in Multnomah, Clackamas, Clatsop and 2 more counties is rising compared with recent weeks. The highest reading in the current data window is 0.6%.

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