National numbers, November 13

We are beginning to see the impacts of colder weather and new variants this week, as both official COVID-19 cases and new hospital admissions went up slightly: increasing by 6% and 5% from the prior week, respectively. Wastewater monitoring similarly shows an uptick in coronavirus transmission at the national level, according to Biobot’s dashboard. The Northeast still has the highest virus concentration, but other regions of the country are catching up.

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National numbers, November 6

Continuing a trend from the last few weeks, nationwide COVID-19 cases and hospitalizations are still at plateaus or trending very slightly downward. We aren’t clearly in a fall surge yet, but concerning newer Omicron subvariants are rising—along with other respiratory diseases.

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National numbers, October 30

The national COVID-19 picture continues to be somewhat murky, thanks in part to poor-quality data. Both nationwide cases and new hospital admissions trended slightly upward in the last week (by 2% and 1%, respectively); this could reflect the beginnings of fall surges in some places, but it’s hard to say for sure.

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National numbers, October 2

Official COVID-19 numbers continue to drop nationwide, with case counts down 13% and new hospital admissions down 6% this week compared to the prior week. Still, signals from wastewater suggest this is no time to let our guard down, especially if you live in the Northeast.

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BF.7, yet another Omicron subvariant of concern

Omicron BF.7, an offshoot of BA.5, is the latest subvariant to raise red flags among experts tracking COVID-19 in the U.S. This week, BF.7 passed BA.2.75, another worrying lineage, in the CDC’s prevalence estimates: the CDC found that it caused about 2.3% of new cases nationwide in the week ending September 24.

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National numbers, September 25

Nationally, official COVID-19 case counts continue to decline: reported cases are down about 11% last week compared to the prior week, while new COVID-19 patients in hospitals are down 10%. But signals from wastewater and variants suggest a fall surge may be starting soon.

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