Health workers wash their hands after taking a blood sample from a child to test for the Ebola virus. On Tuesday, the workers tested people in the village outside Monrovia where a 17-year-old boy died of the disease over the weekend. Abbas Dulleh/AP hide caption
Having many different species of animals around may reduce people's risk of catching some diseases. Anne Wilson/Ikon Images/Corbis hide caption
At the health clinic in Minjibir, Nigeria, a child is immunized for polio. David Gilkey/NPR hide caption
How do you get people to talk about condoms? A man in a condom costume is one tactic used in Vietnam. HOANG DINH NAM/AFP/Getty Images hide caption
An Aka man smokes hemp while hunting in the Central African Republic. Veronique Durruty/Gamma-Rapho via Getty Images hide caption
The outbreak of Middle East respiratory syndrome is slowing down in South Korea, but people were still wearing surgical masks around Seoul on Monday. Ed Jones/AFP/Getty Images hide caption
Airport guards go on patrol wearing masks at Gimpo International Airport in Seoul on Friday. South Korea has announced one more death, but no new cases of the Middle East Respiratory Syndrome coronavirus. Kyodo/Landov hide caption
To screen for MERS, an official at South Korea's customs gate checks the body heat of a worker arriving from North Korea. JUNG YEON-JE/AFP/Getty Images hide caption
Vietnam is seeing an increase in soda drinking. STEPHEN SHAVER/BLOOMBERG NEWS hide caption
A police officer guards the home of a family under a 21-day Ebola quarantine in Freetown, Sierra Leone, back in March. Michael Duff/AP hide caption
Pills are prepared for HIV/AIDS patients at a caregiving facility in Thailand. A new report on global health spending shows HIV/AIDS is the top priority. Taylor Weidman/Getty Images hide caption
Kenyan women visit an outreach team from Marie Stopes, a reproductive health organization that can screen for and treat cervical cancer. Jonathan Torgovnik/Getty Images hide caption
Schoolgirls in Ethiopia examine a new feminine product: underwear with a pocket for a menstrual pad. Courtesy of Be Girl Inc. hide caption