Flu levels remain elevated, with increases in half of US regions, as COVID-19 and respiratory syncytial virus (RSV) levels stayed on downward trends, the Centers for Disease Control and Prevention (CDC) said today in its latest weekly updates.

Flu upticks in multiple regions

Though the national test positivity declined a bit, to 14.8% of respiratory virus samples, the percentage of outpatient visits for flulike illness held steady at 4.5%, the CDC said in its weekly FluView update.

Regional patterns, though, show a mixed picture, with five regions—the Northeast, New England, the Middle Atlantic, the Midwest, and the Central states—experiencing increased activity last week. Test positivity also varied by region, with higher levels in the Northeast, Middle Atlantic, and Central regions.

Click here to read the complete article from the University of Minnesota CIDRAP