Dengue infects an estimated 400 million people worldwide each year.
Rio de Janeiro is home for the next 11 days to thousands of athletes competing in the 2016 Paralympic Games.
Over the past 25 years, women have made a lot of progress in getting jobs that have traditionally been held by men.
U.S. President Barack Obama arrived in Laos Monday for a three-day visit to the Southeast Asian country.
Election officials in the United States are working to stop threats to the election system from cyber attackers.
At the beginning of September, children in many countries return to school.
Donald Trump is making America’s immigration policy the top issue of his presidential campaign.
More than 300 million people in Africa, Asia and Latin America are at risk of life-threatening diseases such as cholera and typhoid.
Researchers are excited about the discovery of what they think is a new species of flying dinosaur that was about the size of a cat.
Bill Nye is getting a new show.