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Several members of Congress and cabinet members who've spent time with President Trump in the last week were tested for coronavirus — and have announced the result was negative.

But that doesn't mean they're in the clear.

These results could be a false negative — which are common in people who've been infected with the virus during the first few days after exposure.

Each week we answer some of your pressing questions about the coronavirus and how to stay safe. Email us your questions at goatsandsoda@npr.org with the subject line "Weekly Coronavirus Questions."

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Updated Friday 2:15 p.m. ET to include a comment from the Centers for Medicare & Medicaid Services.

The federal government is preparing to crack down aggressively on hospitals for not reporting complete COVID-19 data daily into a federal data system, according to internal documents obtained by NPR.

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It's still unknown when a COVID-19 vaccine might be available in the United States. But when one is first approved, there may only be 10 million to 15 million doses available, which may be enough to cover around 3% to 5% of the U.S. population.

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Michael Caputo, the top spokesperson for the Department of Health and Human Services and a longtime ally of President Trump's, is taking a 60-day leave of absence after a social media tirade in which he falsely accused government scientists of engaging in "sedition."

President Trump has publicly blamed the World Health Organization for being slow to sound alarm bells about the coronavirus.

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In March, NPR reported on the tolls of life under quarantine in Wuhan, then the epicenter for COVID-19. We spoke to two visitors who'd returned to their hometown of Wuhan to ring in the Lunar New Year with their families — then couldn't leave for months: epidemiologist Lin Yang, now back in her home in Hong Kong, and Xi Lu, who's returned to London.

Earlier this month, when the Trump administration told hospitals to send crucial data about coronavirus cases and intensive care capacity to a new online system, it promised the change would be worth it. The data would be more complete and transparent and an improvement over the old platform run by the Centers for Disease Control and Prevention, administration officials said.

Instead, the public data hub created under the new system is updated erratically and is rife with inconsistencies and errors, data analysts say.

On January 30, the World Health Organization declared the novel coronavirus — then unnamed — to be a "Public Health Emergency of International Concern." The virus, first reported in China in late 2019, had started to spread beyond its borders, causing 98 cases in 18 countries in addition to some

Senate and House Democrats sent letters to the White House on Friday, asking the Trump administration to reverse its decision to sidestep the Centers for Disease Control and Prevention in collecting critical COVID-19 hospital data.

Copyright 2020 NPR. To see more, visit https://www.npr.org.

SARAH MCCAMMON, HOST:

Updated July 16, 9:40 a.m. ET

The Trump Administration has mandated that hospitals sidestep the Centers for Disease Control and Prevention and send critical information about COVID-19 hospitalizations and equipment to a different federal database.

From the start of the pandemic, the CDC has collected data on COVID-19 hospitalizations, availability of intensive care beds and personal protective equipment. But hospitals must now report that information to the Department of Health and Human Services, which oversees the CDC.

Updated 6:15 p.m. ET

More than 1,200 current employees at the Centers for Disease Control and Prevention have signed a letter calling for the federal agency to address "ongoing and recurring acts of racism and discrimination" against Black employees, NPR has learned.

I'm hearing a lot of talk about the coronavirus spreading through aerosols — is wearing a mask in a grocery store enough protection? What else should I do to stay safe?

Quick answer first: Going to the grocery store where you and everyone else is wearing a mask and keeping a distance from each other is still considered a low-risk activity. Go get your summer strawberries!

The World Health Organization has issued a new scientific brief that summarizes what's known about the different ways the coronavirus can transmit.

The U.S. has sent a letter officially notifying the United Nations that it is leaving the World Health Organization, starting the formal process of withdrawal that President Trump first threatened in April when he halted funding to WHO.

This story was updated on July 7 at 1:54 p.m. to include WHO's response to the letter.

By now, it's common knowledge that the coronavirus can be spread by being in close contact with someone who's infected and then breathing in their respiratory droplets. Or by touching a contaminated surface and rubbing your eyes, nose or mouth.

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