USA: Flu visits reach highest levels since 2009 pandemic

Outpatient visits have surged to their highest levels since the peak of the 2009 swine flu pandemic, with influenza-related emergency department visits remaining very high across the US.

Notably, flu-related outpatient vists are now at their highest point since 2009, with 7.8% of visits for inflenza in the week ending 1 February 2025.

Nineteen states reported high respiratory virus activity and thirteen states reported very high activity.

The CDC reported that flu test positivity has risen to 31.6%, while COVID-19 positivity decreased to 4.9% and RSV positivity decreased to 6.6%. 

Emergency department visits for influenza remained very high, while visits for Covid-19 were low and RSV-related visits were moderate. 

Vaccination coverage for both COVID-19 and influenza remained low, and RSV vaccine uptake is also notably low for both children and adults. 

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Source: Becker's Clinical Leadership, 11 February 2025