national COVID-19 trends
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National COVID-19 trends, September 23
After an uncertain few weeks, all available metrics now agree that the U.S. has passed the peak of its summer/early fall COVID-19 surge. But even as disease levels trend down, there is still a lot of SARS-CoV-2 going around, and levels are unlikely to drop too much further as we start getting into colder weather.…
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National COVID-19 trends, September 16
The latest COVID-19 data offer conflicting information about whether or not we’ve passed the peak of this year’s summer/early fall surge. While test positivity and emergency department visit numbers suggest we have, at least in some parts of the country, wastewater surveillance data report widespread increases through early September.
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National COVID-19 trends, September 9
COVID-19 is still spreading at high levels in the U.S., as the variant XFG collides with the start of a new school year. Some data sources suggest that this summer-into-early fall wave may have reached its peak in parts of the West and South. But indicators are mixed and disease levels are still far from…
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National COVID-19 trends, September 2
Screenshot of a CDC bar chart showing estimated SARS-CoV-2 variant prevalence in the U.S. The chart is titled, “Empiric Proportions and Nowcast Estimates in United States for 4-Week Periods in 9/1/2024 – 8/30/2025.” Each bar in the chart represents variant prevalence for a given month using sections in different colors, going from September 2024 to…
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National COVID-19 trends, August 19
The U.S.’s summer COVID-19 surge continues, with cases increasing across all regions through early August, driven by travel and gatherings as well as the variant XFG. Despite the obvious increases in COVID-19 spread, the CDC’s wastewater dashboard — which recently updated its methodology — downplays current viral activity levels as “low.”
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National COVID-19 trends, August 12
COVID-19 rates continue to take off across the U.S. as our summer surge hits every region. All metrics report substantial increases in SARS-CoV-2 spread in recent weeks — and the latest data are from early August, meaning levels may be much higher now than our reported numbers.
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National COVID-19 trends, August 5
After a slow start, the U.S.’s summer COVID-19 wave is now clearly taking off, with cases increasing nationwide according to all metrics. While the South and West Coast continue to report the highest disease levels, increases are happening across the country.
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National COVID-19 trends, July 29
COVID-19 cases continue to increase across the U.S., with summer outbreaks spreading from the South and West Coast to other regions. So far, this summer’s wave appears less intense than we’ve seen in prior years, but limited data lead me to be wary of getting too optimistic.
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National COVID-19 trends, July 22
A summer COVID-19 wave continues to pick up in the U.S., with national metrics now showing definite increases in mid-July. Cases are still increasing most aggressively in the South and West Coast, but there are signs that the wave is also starting to reach other regions.
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National COVID-19 trends, July 15
Here are the latest national COVID-19 trends, according to the U.S. Centers for Disease Control and Prevention (CDC) and major wastewater surveillance providers: A summer COVID-19 wave has arrived in the U.S., but so far, it is hitting some parts of the country much harder than others. Cases continue to increase across the South and…
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