Liberian officials announced a resurgence of the disease last week. Two of the boy's family members reportedly also have tested positive for the disease.
New York Times reporter C.J. Chivers discusses efforts by ISIS to weaponize a mysterious substance known as red mercury. "It's never been seen," he says. "It essentially is an urban legend."
Turkey says it shot down a Russian fighter plane which had violated its airspace. Russia says one of its planes was shot down over Syria by groundfire, and that it did not violate Turkish airspace.
Both countries oppose the Islamic State. But they have different goals in Syria and have been eyeing each other warily since Russia's military intervened recently.
British Prime Minister David Cameron is making a second attempt to persuade parliament to allow the Royal Air Force to take part in attacks on ISIS in Syria.
U.S. drug giant Pfizer and its rival Allergan have agreed to merge in order to lower its corporate taxes, creating the world's largest pharmaceutical company by sales.
Brussels remains on high alert for the third day with schools and the metro system closed. NPR's Kelly McEvers talks with reporter Teri Schultz in Brussels about how this is affecting residents there.
One of the last four northern white rhinos was euthanized at the San Diego Zoo Sunday. NPR's Kelly McEvers talks to Rick Schwartz, the zoo's global ambassador, about how the species was so decimated and what might be done to save it.
France is the world's most-visited country, but thousands of tourists have canceled trips since the Paris attacks. Big conventions have been postponed. Music acts like U2 have canceled concerts.
Ernest Hemingway's A Moveable Feast has hit the French bestseller list a half century after its publication, all because of a French granny. A 77-year-old Paris woman who lives near the Bataclan concert hall gave a TV interview that went viral. In the interview, she calls on her countrymen to read Hemingway's novel of living it up in the "City of Light."