Keiko Fujimori is inaugurated as Perus president following a narrow election victory NPR

An annual report from the American Heart Association shows deaths from heart disease and stroke are down, encouraging news after the rate went up in the early years of the…

The U.S. is giving $1.6 million to researchers to study how the hepatitis B vaccine affects newborns in Guinea-Bissau. Local officials say the trial is suspended. U.S. officials say that's inaccurate.

Videos taken by eye witnesses of federal agent encounters with immigrants in Chicago and elsewhere have shown increasingly tense incidents. Immigrant advocates and observers say they're indicative of a larger…