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Shane Avery practices family medicine in Scott County, Ind. In December, a patient came to his office who was pregnant, and an injection drug user.

After running some routine tests, Avery found out that she was positive for HIV. She was the second case he had seen in just a few weeks.

"Right then, I kind of realized, 'Wow, are we on the tip of something?' " Avery says. "But you just put it away. ... It's statistically an oddity when you're just one little doctor, you know?"

In spring, West Bank almond trees bloom white. Dry brown hills turn temporarily green and are dotted with bright wildflowers. The ewes and nanny goats of Bedouin herders that wander the West Bank eat well this time of year.

It's cheese season.

Expert: Iranians In Favor Of Nuclear Deal

3 hours ago
Copyright 2015 NPR. To see more, visit http://www.npr.org/.

Copyright 2015 NPR. To see more, visit http://www.npr.org/.

Researchers have answered a question that has been nagging them for years: Exactly how long is a day on the planet Saturn? The result (10 hours and 32 minutes or so) was published this week in the journal Nature, and could teach scientists more about the giant, ringed planet.

A day is simply how long it takes a planet to spin all the way around. On Earth, one rotation takes 23 hours, 56 minutes and 4 seconds — though earthlings round up to 24 hours even.

Copyright 2015 NPR. To see more, visit http://www.npr.org/.

Copyright 2015 NPR. To see more, visit http://www.npr.org/.

Three Jazz Pianists, A Generation After Apartheid

4 hours ago

In South Africa, the major art of resistance during apartheid was jazz: a melting pot where folk songs and hymns defiantly mixed with influences from South Asia, America and West Africa. South African jazz's central formula — its equivalent to the 12-bar blues — is a buoyant, four-chord progression that even seems to evoke a blending motion.

Flamin' Hot Cheetos might conjure a lot of descriptors: spicy, crunchy, unnaturally fiery red. But it's a good bet that "healthy" didn't exactly spring to mind.

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