COVID-19, Influenza, and RSV Wastewater Monitoring in the U.S. | Week of February 14, 2026

Summary: Week of 2/14/26

Influenza B is surging across the U.S. and Biobot’s wastewater is tracking the rapid increase. Clinics are seeing it too: flu B now makes up about a third of positive flu tests, up from about 5% just a couple weeks ago. Meanwhile, COVID-19 is creeping up again (mostly driven by the Midwest), and RSV is also trending upward.

The Bottom Line: We are still in the respiratory virus season, and flu B is of biggest concern right now. If you’re at higher risk for severe illness (young children, older adults, immunocompromised, etc.) now is a good time to continue layering protections (like masking in indoor crowded spaces or increasing ventilation), and test early if symptoms start (there are now rapid tests for the flu you can buy at your local pharmacy).

National Outlook

COVID-19

Nationally, SARS-CoV-2 is increasing, mostly driven by increases in the Midwest.

Influenza

Nationally, influenza A is holding steady while influenza B is increasing substantially.

RSV

Nationally, RSV is increasing.

Regional Outlook

The South

COVID-19: SARS-CoV-2 is slightly increasing in the South.

Influenza: Influenza A is decreasing in the South while influenza B is increasing substantially.

RSV: RSV is increasing in the South.

The Midwest

COVID-19: SARS-CoV-2 is increasing in the Midwest.

Influenza: Influenza A is slightly increasing in the Midwest, while influenza B is increasing substantially.

RSV: RSV is increasing in the Midwest.

The Northeast

COVID-19: SARS-CoV-2 is holding steady in the Northeast.

Influenza: Influenza A is decreasing in the Northeast, while influenza B is increasing substantially.

RSV: RSV is increasing in the Northeast.

The West

COVID-19: SARS-CoV-2 is decreasing in the West.

Influenza: Influenza A is slightly increasing in the West, while influenza B is increasing substantially.

RSV: RSV is increasing in the West.

Footnotes:

We continue to monitor the evolving H5N1 influenza virus situation, and can now test samples specifically for H5 (including H5N1) — please reach out to hello@biobot.io if interested. A quick reminder that Biobot’s influenza A assay described in this report includes the H5N1 influenza subtype, which is an influenza A virus, but does not distinguish between the different subtypes of influenza A (e.g. H5N1 vs H1N1). We will share any important updates as we have them. 

Wastewater data from Biobot Analytics for RSV, influenza, and SARS-CoV-2 are through February 14, 2026 (MMWR week 6).