Ebola cases have steadily declined in Liberia and Sierra Leone over the past several weeks. World Health Organization hide caption
Global Health
Thursday
Wednesday
Can you find Australia and Canada? The cartogram scales each country's geographic area by its population. (Click through to see a high-resolution map.) Original work courtesy of Paul Breding. Copyright 2005, ODTMaps.com, Amherst, MA. Adapted by Reddit user TeaDranks hide caption
Friday
An employee of the drug company Apotex, examines some Ciprofloxacin at the plant in Canada. Cipro is commonly given to travelers for diarrhea. More than 20 million Cipro doses are prescribed each year in the U.S. Getty Images hide caption
Cellphones are everywhere in the developing world, as this Nairobi street scene shows. Bill and Melinda Gates believe the phones can be used for everything from farmer education to instant banking. Simon Maina/AFP/Getty Images hide caption
Thursday
In November, women in El Salvador marched for the freedom of 17 women accused of abortion, including Carmen Guadalupe Vasquez Aldana. She was pardoned this week. Luis Galdamez/Xinhua /Landov hide caption
Monday
After the earthquake in 2010, about 1,000 people were living in tents on the median of Highway 2, one of Haiti's busiest roads. Five years later, tens of thousands of people in Port-au-Prince still live in tents and other temporary housing. David Gilkey/NPR hide caption
Thursday
The birth of vaccines: Photographer Alexia Sinclair portrays Dr. Edward Jenner giving John Phipps the world's first vaccine, for smallpox, in 1796. Courtesy of Alexia Sinclair hide caption
Friday
Ecologists found signs of Ebola in a Rousettus leschenaultii fruit bat. These bats are widespread across south Asia, from India to China. Kevin Olival/EcoHealth Alliance hide caption
Thursday
A woman protects her child's face in Managua, Nicaragua, as health workers fumigate for mosquitoes that carry chikungunya. The virus started spreading through Nicaragua and Mexico in the fall. Esteban Felix/AP hide caption
Painful Virus Sweeps Central America, Gains A Toehold In U.S.
Tuesday
During the dry season, human waste makes the water putrid along the floating village of Prek Toal on Tonle Sap Lake. Courtesy of Taber Hand hide caption
Tuesday
The dengue virus has an icosahedral shape, similar to the pattern on a soccer ball. Antibodies stop the virus by binding to its surface. Laguna Design/Science Source hide caption
Tuesday
Members of the community in New Georgia Signboard greet President Ellen Johnson-Sirleaf Monday for the launch of the Ebola Must Go! campaign. John W. Poole/NPR hide caption
'Ebola Must Go' — And So Must Prejudice Against Survivors
Friday
A worker puts the finishing touches on the dividers that will separate patients at the community care center in the Port Loko district of Sierra Leone. David Gilkey/NPR hide caption
World's Slow Response To Ebola Leaves Sierra Leone Villages Scrambling
Thursday
Makutu Jabateh hugs her daughter, Mabana Konneh, 5, as the little girl returns home to her neighborhood in Jacobstown, Monrovia. John W. Poole/NPR hide caption
For Ebola Orphans In Liberia, It's A Bittersweet New Beginning
Wednesday
HIV is like a jack-in-the-box: When it binds to a cell, its shell (yellow) pops open, and its genetic material (reds) comes out. Eye of Science/Science Source hide caption