Jason Beaubien

This year's Nobel Peace Prize has been given to the U.N. World Food Programme for its efforts to fight hunger and to prevent the use of starvation as a weapon of war.

But did you know that the World Food Programme has a canine mascot named Foxtrot?

About 10% of the global population may have been infected by the coronavirus, according to a senior World Health Organization official.

It's an estimate that's far higher than the total of global confirmed cases reported by governments. At the same time, it would mean that most of the world's population is still vulnerable to getting infected and this pandemic is far from over, the WHO's head of emergencies Dr. Michael Ryan said Monday.

In the largest study ever of transmission patterns for COVID-19, researchers in India tested more than a half-million contacts of 85,000 cases to examine how and to whom the coronavirus is spreading.

The first interesting finding: Children are spreading the virus amongst themselves and also to adults. Second: The greatest risk for infection among the people studied in the two southern Indian states of Tamil Nadu and Andhra Pradesh is a long bus or train ride.

The United States is home to the world's best-known technology companies, but so far the use of smartphones to fight the coronavirus has been tepid at best.

Smartphones have the potential to be a powerful tool in tracking the spread of COVID-19. They can tell you exactly how close you've been to other people, for how long and keep a detailed log of everyone you've been around for the last 14 days. Linked to testing systems, they can rapidly alert you if someone you've been in contact with tests positive.

As millions of students return to virtual classes at their dining room tables, some parents who are also trying to work from home have decided to ship their kids off to camp.

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STEVE INSKEEP, HOST:

Coffee lovers, here's something to be grateful about. Unlike paper towels, disinfectant or yeast, coffee has never been hard to find during the pandemic.

In some places in the world right now, getting tested for COVID-19 remains difficult or nearly impossible. In Rwanda, you might just get tested randomly as you're going down the street.

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AILSA CHANG, HOST:

Today the Trump administration formally notified the United Nations that it is pulling out of the World Health Organization. For more on this move, NPR's global health correspondent Jason Beaubien joins us now.

Hey, Jason.

Chile looked as if it were well prepared to deal with the new coronavirus.

It's a rich country — classified as high income by the World Bank. Life expectancy is roughly 80 years — better than the United States'. It has a solid, modern health care system, and when the outbreak began spreading, officials made sure they had plenty of ventilators and intensive care beds at the ready.

Why the coronavirus appears to affect children differently than it affects adults is one of the great mysteries of the current pandemic.

And it's a question that Rosalind Eggo, an assistant professor of mathematical modeling from the London School of Hygiene and Tropical Medicine, and her colleagues have tried to answer.

"What we found was that people under 20 were about half as susceptible to infection as people over 20," Eggo says.

Efforts are underway in Washington to revamp U.S. foreign aid in the wake of the coronavirus.

Proposals from both the White House and the Senate would shift billions of dollars in foreign assistance, consolidate control over U.S. humanitarian aid in the State Department and — according to one former top aid official — undermine the lifesaving work of USAID.

Two new papers published in the journal Nature say that lockdowns put in place to slow the spread of the coronavirus were highly effective, prevented tens of millions of infections and saved millions of lives.

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MARY LOUISE KELLY, HOST:

This afternoon, President Trump said he is severing U.S. ties with the World Health Organization over the U.N. agency's handling of the coronavirus pandemic.

(SOUNDBITE OF ARCHIVED RECORDING)

Over the past month, Hong Kong has averaged one new confirmed coronavirus case a day.

Taiwan has reported only one case in the past three weeks. The situation is similar in Vietnam. Although the number of coronavirus cases continues to grow globally, there are places that have managed to successfully control COVID-19.

New Zealand's triumph

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