Summary: Week of 6/20/26
Biobot’s national network is showing that, once again, major respiratory viruses are quiet. After brief increases in SARS-CoV-2 and RSV, national trends for both are back down. We are seeing some increases in SARS-CoV-2 in the West, though at low levels. We’ll be paying close attention to see if those blips could be an early warning signal of a summer wave.
Other major respiratory viruses, including influenza A, influenza B, and HMPV, remain low and steady, or declining.
The Bottom Line: Respiratory virus activity remains low overall. SARS-CoV-2 and RSV recently saw some increases, but are both back down. This is still a good time to pay attention to local respiratory activity, especially if you’re traveling, attending large events, or spending time with someone at higher risk.
National Outlook
COVID-19
Nationally, SARS-CoV-2 is decreasing.
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 decreasing 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 decreasing 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 decreasing in the Midwest.
The Northeast
COVID-19: SARS-CoV-2 is decreasing 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 slightly 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.
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Footnotes:
We continue to monitor evolving health threats, like measles outbreaks and H5N1 avian influenza, and can test samples specifically for these viruses. Please reach out to hello@biobot.io if interested. We will share any important updates as we have them. Wastewater data from Biobot Analytics for RSV, influenza, and SARS-CoV-2 are through June 20, 2026 (MMWR week 24).