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Expand chart
Data: CSSE Johns Hopkins University; Map: Andrew Witherspoon/Axios

In the past two weeks, 83% of U.S. counties have seen their coronavirus cases increase, by an average of 156%.

Why it matters: This county-level map shows a more granular level of detail than our weekly state map, and makes clear that infections are soaring in almost every pocket of every state, in every region.

The hotspots:

  • Crowley County, Colorado, and Lee County, Kentucky, had the first and third highest caseloads per 100,000 people this week. Both were the site of prison-based outbreaks.
  • Foster and Stutsman counties in North Dakota are in the top six.
  • Johnson County, Nebraska, population 5,197, is averaging 16.4 new cases a day this week.

The other side: The 461 counties that are decreasing have a seven-day average of 39.5 cases per 100,000 people, lower than the 69.7 per 100,000 for increasing counties.

Go deeper

Updated 17 hours ago - Health

U.K. first nation to clear Pfizer coronavirus vaccine for mass rollout

A health care worker during the phase 3 COVID-19 vaccine trial by Pfizer and BioNTech in Ankara, Turkey, in October. Photo: Dogukan Keskinkilic/Anadolu Agency via Getty Images

The U.K. government announced Wednesday it approved Pfizer-BioNTech's COVID-19 vaccine, which "will be made available across the U.K. from next week."

Why it matters: The U.K. has beaten the U.S. to become the first Western country to give emergency approval for a vaccine that's found to be 95% effective with no serious side effects against a virus that's killed nearly 1.5 million people globally.

12 hours ago - World

Putin says Russia will begin large-scale COVID-19 vaccination next week

Photo: Sean Gallup/Getty Images

Russian President Vladimir Putin said Wednesday that he has directed officials to begin large-scale vaccination against COVID-19 as early as next week, according to state media.

Why it matters: Russia, which has the fourth-largest coronavirus caseload in the world with more than 2.3 million infections, would be the first country to begin mass vaccination. Experts have criticized the lack of scientific transparency around the vaccine and the haste with which the Kremlin approved it.

20 hours ago - Health

Fauci: U.S. could have herd immunity by the end of summer 2021

National Institute of Allergy and Infectious Diseases director Anthony Fauci at the White House in November. Photo: Tasos Katopodis/Getty Images

NIAID director Anthony Fauci said Tuesday the U.S. could achieve herd immunity to COVID-19 by the end of next summer or fall if there's a "good uptake" of Americans vaccinating against the virus.

Driving the news: Fauci said during an online video conversation with Colorado Gov. Jared Polis (D) he expects the general population to have access to the vaccines U.S regulators are now considering by April.