Influenza-like illness continues to drop nationally, as seen from the latest CDC data for the week ending March 3:
At Children's National we don't collect data in that manner, but our viral detection results for the week ending March 11 show a clear shift in influenza strains, now showing a predominance of influenza B. At our institution flu B is now about twice as common as flu A, which was the predominant strain earlier in the season. RSV is still hanging around from 2017, now at least as common as flu A detections.
In past years, this shift to influenza B has been typical for late in the flu season. However, we still have plenty of flu in the air, not too late to recommend influenza immunization for any children who missed it earlier in the year.