Respiratory Risk Report
Week ending in July 4, 2026
Biobot’s national wastewater network has detected an uptick in SARS-CoV-2 levels, driven by increases in the Midwest, South, and West. This could be an early signal of a summer wave, though it is still too soon to know whether the trend will hold.
RSV, after a recent uptick, is now declining across all four regions and remains low overall.
Influenza A, influenza B, and HMPV are also at low levels, with activity either holding steady or declining.
Bottom Line
We are keeping our eye on SARS-CoV-2 to see if the upward trend holds. The reassuring news is that RSV, flu, and HMPV remain low or are declining.
If you’re traveling, heading to large indoor events, or spending time with older adults, babies, pregnant people, or someone who is immunocompromised, it’s still a good time to pay attention to local viral activity.
National Outlook
COVID-19
Nationally, SARS-CoV-2 is increasing.
Influenza
Nationally, influenza A and B are holding steady at very low levels.
RSV
Nationally, RSV is decreasing.
HMPV
Nationally, HMPV is decreasing.
Regional Outlook
The South
COVID-19: SARS-CoV-2 is increasing in the South.
Influenza: Influenza A and B are holding steady at very low levels in the South.
RSV: RSV is decreasing in the South.
HMPV: HMPV is decreasing in the South.
The Midwest
COVID-19: SARS-CoV-2 is increasing in the Midwest.
Influenza: Influenza A and B are holding steady at very low levels in the Midwest.
RSV: RSV is decreasing in the Midwest.
HMPV: HMPV is holding steady in the Midwest.
The Northeast
COVID-19: SARS-CoV-2 is holding steady in the Northeast.
Influenza: Influenza A and B are holding steady at low levels in the Northeast.
RSV: RSV is decreasing in the Northeast.
HMPV: HMPV is decreasing in the Northeast.
The West
COVID-19: SARS-CoV-2 is increasing in the West.
Influenza: Influenza A and B are holding steady at low levels in the West.
RSV: RSV is decreasing in the West.
HMPV: HMPV is decreasing in the West.
You can subscribe to our Substack to get future updates delivered straight to your inbox.
Wastewater data from Biobot Analytics for RSV, influenza, HMPV, and SARS-CoV-2 are through July 4, 2026 (MMWR week 26).