Babies have a microbe in their gut that prevents infections and helps the immune system. But not all infants get the bacteria at the same time, or in the same amount. Scientists have figured out why.
A source with knowledge of Hillary Clinton's campaign plans says she will announce on Sunday that she's running for president. But don't expect a big campaign rally with thousands of supporters.
On April 12, 2015, the world will celebrate the 60th anniversary of Jonas Salk's vaccine that led to the eradication of polio.
A blind man who was sold actual grass instead of the grass he was looking for has told a French court that it was he, and not his guide dog, who bit a deceitful dealer.
NPR has learned that the former first lady and secretary of state will formally announce her plan to seek the Democratic nomination, ending years of speculation about her intentions.
Lawmakers in Islamabad instead approved a draft resolution calling on the government to play a mediating role in the conflict against the Houthi rebels.
The courts have agreed to set uniform fees and fines, changing a process that fueled anger and frustration with the legal system in Ferguson, Mo.
HBO's Game of Thrones, Veep and Silicon Valley all start new seasons Sunday. NPR TV critic Eric Deggans says these three shows just might form the best Sunday night lineup on TV this spring.
The tornado was so massive and the damage so extensive that in some areas, plows had to push debris off the streets so emergency crews could reach survivors.
Drug overdoses — many from opioid painkillers — cause more deaths in the U.S. than car crashes, shootings or alcohol. But stigma keeps many addicts from an antidote that could quickly save them.
Supercell thunderstorms produced a large tornado that touched down Thursday night in northern Illinois, killing one person in a tiny community as severe weather pummeled the Midwest.