A woman receives the rVSV-ZEBOV Ebola vaccine at a clinical trial in Conakry, Guinea. The vaccine appears effective after only one shot. Cellou Binani/AFP/Getty Images hide caption
Global Health
Friday
The Ebola vaccine from a trial in Guinea needs to be kept at a temperature of minus 60 degrees Celsius, the World Health Organization says. Storage devices use jet fuel to keep the right temperature for up to five days in the field. Sean Hawkey/Sean Hawkey hide caption
Thursday
The bar chart tells all: That's how eighth-graders at Bakgatle Community Junior Secondary School in Botswana can compare the HIV infection rate of older men and of teenage boys. Don Boroughs for NPR hide caption
Wednesday
At a camp for overweight children in Beijing, students stretch after taking a swim. Kevin Frayer/Getty Images hide caption
Monday
President Obama receives flowers upon his arrival Sunday aboard Air Force One at Bole International Airport in Addis Ababa, Ethiopia. Saul Loeb/AFP/Getty Images hide caption
Trevor Noah will appear in Santa Monica on Tuesday, then head to the U.K. for the Edinburgh Festival Fringe in late August. Don't worry, he'll be back in time for his debut as the Daily Show host. Michael O'Brian/Flickr hide caption
Sunday
Transgender performers walk backstage during an event to mark World AIDS Day in 2013. A new WHO report demonstrates extremely rates of HIV infection among transgender women in 15 countries. Prakash Mathema/AFP/Getty Images hide caption
Transgender Women Face Inadequate Health Care, 'Shocking' HIV Rates
Saturday
Tough helmet laws have caused the number of helmet wearers in a Vietnamese province to jump from 34 percent to 76 percent. Thomas Janisch/Moment Editorial/Getty Images hide caption
Friday
A baby helps make history. The Kenyan child is receiving the new malaria vaccine — the first ever that can wipe out a parasite — as part of a clinical trial. Karel Prinsloo/AP hide caption
Why A Vaccine That Works Only A Third Of The Time Is Still A Good Deal
Thursday
Teacher Kim Song Bo lectures at a new school that is training students to make prosthetic limbs. Classes are held at the Center for the Rehabilitation of the Paralyzed in Dhaka, Bangladesh. Amy Yee/NPR hide caption
Tuesday
Adult hookworms, from a dog. The larva, which penetrate the skin, are even smaller. Agency-Animal-Picture/Getty Images hide caption
British actress Zawe Ashton and Agnes Pareyio, who underwent female genital mutilation as a girl in Kenya, are two of the activists featured in "Stop Cutting Our Girls," a documentary opposing the practice. Pontso Mafethe/Courtesy of Pontso Mafethe hide caption
The area around the confluence of the Silverthrone and Klinaklini glaciers in southwestern British Columbia provides a glimpse into how the terrain traveled by Native Americans in Pleistocene times may have appeared. David J. Meltzer/Science hide caption
2 Gene Studies Suggest First Migrants To Americas A Complex Mix
Friday
Slum dwellers near Calcutta get their water from a municipal pipe. Water coming out of the tap on the left is for bathing and so is untreated. The blue Zimba chlorinator is hooked up to the tap on the right, which is used for drinking water. Courtesy of Suprio Das/Zimba hide caption
"What has happened in the last ten years, has been a remarkable increase in actual number of people who are dying or are not able to get better because they carry a resistant infection."--Ramanan Laxminarayan Courtesy of TEDMED hide caption