National numbers, January 22

January 22, 2023.Reading time 5 minutes.

National COVID-19 metrics continue to suggest that the U.S. is coming out of its holiday surge, though some parts of the country may face increased transmission as the Omicron variant XBB.1.5 spreads.

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National numbers, December 18

December 18, 2022.Reading time 5 minutes.

After a significant post-Thanksgiving spike, COVID-19 transmission in the U.S. appears to be in a high plateau, according to trends in cases and wastewater. Official case counts stayed fairly steady this week compared to the week following the holiday, according to the CDC, while wastewater data from Biobot show coronavirus concentrations leveling out.

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National numbers, December 11

December 11, 2022.Reading time 6 minutes.

It’s now undeniable that Thanksgiving led to a jump in COVID-19 spread: officially-reported cases went up 50% this past week compared to the week of the holiday, following the trend that we first saw in wastewater data. Hospital admissions for COVID-19 also continue to go up.

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National numbers, December 4

December 4, 2022.Reading time 6 minutes.

If the U.S. wasn’t at the start of a COVID-19 surge before Thanksgiving, we’re certainly in one now. While official case counts have stagnated, wastewater surveillance indicates that the country is seeing about 1.5 times the coronavirus transmission that we had three weeks ago, according to data from Biobot.

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National numbers, November 27

November 27, 2022.Reading time 5 minutes.

Nationwide, reported COVID-19 cases went up last week: the CDC reports 8% more cases in the week ending November 23 than in the week ending November 16. Wastewater monitoring also suggests a pre-Thanksgiving uptick, according to Biobot, while new hospitalizations have been at a plateau.

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National numbers, November 20

November 20, 2022.Reading time 6 minutes.

Nationwide, reported COVID-19 cases and new hospital admissions are still in a plateau; both metrics declined very slightly this week after rising slightly last week (declining by 3% and 1%, respectively).

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Sources and updates, November 13

November 13, 2022.Reading time 4 minutes.

Sources and updates for the week of November 13 include booster shot uptake by state, masks in schools, Paxlovid for Long COVID, and more.

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National numbers, November 13

November 13, 2022.Reading time 5 minutes.

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

November 6, 2022.Reading time 6 minutes.

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

October 30, 2022.Reading time 6 minutes.

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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