Force of Infection

Force of Infection

Outbreak Outlook - National - March 29

Flu continues to rise in the Northeast; RSV still high

Mar 29, 2026
∙ Paid

Force of Infection is now on the summer schedule, meaning national Outbreak Outlook updates are only available to paid subscribers. The winter schedule, including the free national version, will resume in October.

Respiratory Diseases

Influenza-like illness

We have officially passed out of flu season. Visits to the doctor for flu-like illness dropped to 2.9%, below the baseline of 3.1%.

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