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It's not every day that the world gets a new tool that could save 100,000 children each year.

And it's definitely not every day that the secret to that tool is the same thing that makes space ice cream so memorable.

Sounds crazy. But bear with me a moment.

Scientists say they have a new vaccine that's about 70 percent effective against rotavirus — a nasty little pathogen that gives children bad diarrhea here in the U.S. but kills more than 200,000 children each year in developing countries.

Dan Fazio says his phone is "ringing off the hook" these days.

He's executive director of WAFLA, an organization that helps fruit growers in Washington state find workers — and specifically, foreign workers who are allowed to enter the U.S. specifically as seasonal workers on farms.

Musicians from all over the world are settling back at home, recovering from last week's South by Southwest festival in Austin, Texas. Hundreds of musicians played throughout the week, for crowds big and small.

Sears used to be the titan of American retailing. But now its future is in doubt.

Shares of the company's stock tumbled 12 percent today after the company acknowledged Tuesday in its annual 10-K filing that its future viability is not a sure thing. A 10-K is a report that public companies file with the Securities and Exchange Commission, giving a comprehensive summary of the company's financial performance.

At the State Department on Wednesday, officials from 68 countries and organizations gathered for a two-day summit to coordinate plans to fight ISIS. This was the first full meeting of the Global Coalition on the Defeat of ISIS since 2014, and a chance for the Trump administration to flesh out what it wants to do differently.

So far, it is mainly stepping up a fight that the Obama administration put in motion.

For the first time in birds, researchers say they have found evidence that a New Zealand parrot has the avian equivalent of an infectious laugh.

They call it "positive emotional contagion" — which they define as "outwardly emotional actions that spread from one individual to another." In humans, this is what happens when one person hears another laugh and also starts cracking up.

Angela Chen makes money hawking her ties to important people, running a consulting firm that helps companies connect with Asia's power players.

So it inevitably attracted notice when Chen spent nearly $16 million recently to buy a four-bedroom Park Avenue penthouse owned by President Trump himself.

The February deal, which was first reported by Mother Jones, underscores one of the problems posed by Trump's ongoing business interests.

Before Carmencita Misa became bedridden, she was a veritable "dancing queen," says her daughter, Charlotte Altieri.

"Even though she would work about 60 hours a week, she would make sure to go out dancing once a week — no matter what," Altieri, says. "She was the life-of-the-party kind of person, the central nervous system for all her friends."

A massive stroke in March 2014 changed all that. It robbed Misa, 71, of her short-term memory, her eyesight and her mobility — and it left her dependent on a feeding tube for nourishment. Now, she lives in a nursing home.

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During the presidential campaign, Donald Trump's outreach to black voters essentially came down to this.

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