In the 1960s, posters gave advice to the public on the risk of a pregnant mother transmitting rubella to the fetus. Centers for Disease Control and Prevention hide caption
Global Health
Sunday
Saturday
Aedes aegypti mosquitoes are displayed at an exhibition on Jan. 28 in Brazil. The mosquitoes can be carriers of the Zika virus. Several cases of the virus have spread to Puerto Rico. Mario Tama/Getty Images hide caption
Puerto Rico Health Official 'Very Concerned' About Zika's Spread
Chart of mosquito repellents in 2015 study. Katie Park/NPR hide caption
Friday
A colored-in microscopic image of the parasite that causes African sleeping sickness (teal) among red blood cells. Georg Gerster/Science Source hide caption
This is a partial view of the tennis center at Olympic Park in Rio de Janeiro. The International Olympic Committee is sending an advisory to participants in the 2016 Summer Games on how to deal with the mosquito-borne Zika virus. Leo Correa/AP hide caption
Gleyse Kelly da Silva holds her daughter, Maria Giovanna, who was born with microcephaly. Felipe Dana/AP hide caption
Zika-Linked Brain Damage In Infants May Be 'Tip Of The Iceberg'
Thursday
China is one of the countries where childhood mortality is dropping. Above, students practice martial arts. ChinaFotoPress via Getty Images hide caption
Dr. Margaret Chan is director-general of the World Health Organization. In her first major address on Zika, delivered Thursday in Geneva, she said: "Questions abound. We need to get some answers quickly." Sandro Campardo//epa/Corbis hide caption
Wednesday
Manyang Reath had never seen snow until he moved from Sudan to Richmond, Va., in 2005. Here he is in 2008, embracing it. Courtesy of Manyang Reath hide caption
Nigerian billionaire Tony Elumelu hopes to create job opportunities by investing in African startups. Above: Elumelu, center right, speaks at an entrepreneurship event in July 2015. Courtesy of Tony Elumelu Foundation hide caption
To End Poverty, Billionaire Gives $10,000 To 10,000 Entrepreneurs
Brazilian soldiers go house to house as they attempt to eradicate the larvae of the mosquito that causes the Zika virus. Mario Tama/Getty Images hide caption
Pregnant women infected by the Zika virus are concerned about the possible link to a birth defect. Above: Angelica Prato of Colombia has a checkup. Schneyder Mendoza/AFP/Getty Images hide caption
Is It Realistic To Recommend Delaying Pregnancy During Zika Outbreak?
Tuesday
The Aedes aegypti mosquito is one of two types thought to be capable of carrying and transmitting the Zika virus. Nelson Almeida/AFP/Getty Images hide caption
Big Zika Virus Outbreak Unlikely In The U.S., Officials Say
Larvae of genetically modified Aedes aegypti mosquitoes are pictured through a microscope viewfinder. The larvae will die before reaching adulthood. Nelson Almeida/AFP/Getty Images hide caption