Photo: Leonard Ortiz/MediaNews Group/Orange County Register via Getty Images

A new study found that 13.9% of 3,000 New Yorkers tested had signs of the coronavirus, suggesting that about 10 times the number of people who have officially tested positive have had the virus, Bloomberg reports.

Why it matters: Studies like these will help us understand the virus and its true spread. So far, what we've been able to learn about it has been limited by inadequate testing, because that's resulted in only the sickest patients being tested.

  • It's unknown how many people have had the virus and been unable to get the test, never sought out a test, or were completely asymptomatic.

Details: In New York City, where the outbreak was more intense, 21.2% tested positive for an antibody showing that they'd had the virus.

The big picture: This is just one test, and we'll need more like it to get a clearer picture of the virus. But eventually, they'll tell us how contagious the virus is, how fatal it is, and how many people have already been infected and thus may have immunity.

Go deeper: How coronavirus antibody tests will help

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Trump says Fauci is "wrong" about coronavirus cases surge

President Trump and National Institute of Allergy and Infectious Diseases director Anthony Fauci during an April daily coronavirus task force briefing at the White House. Photo: Drew Angerer/Getty Images

President Trump called out Anthony Fauci Saturday in a comment retweeting a video of the NIAID director explaining why coronavirus cases have been surging in the U.S.

Driving the news: In the video of Friday's testimony, Fauci explained that while European countries shut 95% of their economies, the U.S. "functionally shut down only about 50%." Trump responded, "Wrong! We have more cases because we have tested far more than any other country, 60,000,000.

Updated Oct 7, 2020 - Health

World coronavirus updates

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Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Axios Visuals

New Zealand now has active no coronavirus cases in the community after the final six people linked to the Auckland cluster recovered, the country's Health Ministry confirmed in an email Wednesday.

The big picture: The country's second outbreak won't officially be declared closed until there have been "no new cases for two incubation periods," the ministry said. Auckland will join the rest of NZ in enjoying no domestic restrictions from late Wednesday, Prime Minister Jacinda Ardern said, declaring that NZ had "beat the virus again."

Updated 3 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Politics: Chris Christie: Wear a mask "or you may regret it — as I did" — Senate Democrats block vote on McConnell's targeted relief bill.
  2. Business: New state unemployment filings fall.
  3. Economy: Why the stimulus delay isn't a crisis (yet).
  4. Health: Many U.S. deaths were avoidable — The pandemic is getting worse again.
  5. Education: Boston and Chicago send students back home for online learning.
  6. World: Spain and France exceed 1 million cases.