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Cold-weather states showing highest rate of new cases

Shana Alesi administers a coronavirus booster dose to Marine Corps veteran Bill Fatz at the Edward Hines Jr. VA Hospital on Sept. 24, in Hines, Ill. (Scott Olson/Getty Images)
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As coronavirus cases spurred by the delta variant wane across much of the country, states with cold weather are showing a rise in new coronavirus infections, according to Washington Post data.

Alaska is leading the low-temperature states with an increase in the number of infections, with 123 new cases per 100,000 residents on a seven-day rolling average. Montana, Wyoming, Idaho and North Dakota also are seeing a rise in infections as the weather cools, reducing opportunities to socialize outdoors and limiting physical distancing.

States in the northeastern region of the country also have experienced an increase in infection numbers over the past seven days. New Hampshire, Illinois, Massachusetts, Connecticut and Rhode Island have recorded increases in infections, according to Post data.

Here’s what to know

  • In adolescents ages 12 to 15, a two-dose regimen doses of the Pfizer-BioNTech vaccine was 93 percent effective in preventing hospitalizations, according to a new report from the Centers for Disease Control and Prevention.
  • Both Romania and New Zealand reported record number of coronavirus cases Tuesday. Romania said it had seen 18,863 cases, while New Zealand registered 94 cases.
  • Americans can get coronavirus vaccine booster doses that are different from the kind of vaccine they first received, the Food and Drug Administration is expected to say Wednesday, two federal officials familiar with the situation told The Post.

Coronavirus: What you need to know

The latest: The CDC has loosened many of its recommendations for battling the coronavirus, a strategic shift that puts more of the onus on individuals, rather than on schools, businesses and other institutions, to limit viral spread.

Variants: BA.5 is the most recent omicron subvariant, and it’s quickly become the dominant strain in the U.S. Here’s what to know about it, and why vaccines may only offer limited protection.

Vaccines: Vaccines: The Centers for Disease Control and Prevention recommends that everyone age 12 and older get an updated coronavirus booster shot designed to target both the original virus and the omicron variant circulating now. You’re eligible for the shot if it has been at least two months since your initial vaccine or your last booster. An initial vaccine series for children under 5, meanwhile, became available this summer. Here’s what to know about how vaccine efficacy could be affected by your prior infections and booster history.

Guidance: CDC guidelines have been confusing — if you get covid, here’s how to tell when you’re no longer contagious. We’ve also created a guide to help you decide when to keep wearing face coverings.

Where do things stand? See the latest coronavirus numbers in the U.S. and across the world. The omicron variant is behind much of the recent spread.

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