RSV-like illness accounts for 0.01% of emergency department visits in Baltimore, Anne Arundel, Baltimore and 3 more counties for the week of September 20. RSV-like illness activity in Baltimore, Anne Arundel, Baltimore and 3 more counties is holding steady compared with recent weeks. The highest reading in the current data window is 0.02%.

Emergency department visits for RSV (respiratory syncytial virus) in your local area, from CDC surveillance data.