A reconstruction of a Neanderthal man (right) based on skull found at the La Ferrassie rock shelter in Dordogne Valley, France. He's face to face with a male Homo sapien. Philippe Plailly & Atelier Daynes/Science Source hide caption

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A woman with a cut on her cheek and trouble seeing with her left eye was admitted to Craig Joint Theater Hospital at Bagram Air Field, Afghanistan. X-rays showed a projectile that surgeons decided to remove. Forbes et al. 2016/Journal of Neurosurgery hide caption

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Belkiz Halip and her children Eye (left) and Zehra fled bombing in Aleppo to a tent city close to the Bab al-Salam crossing on the Turkish-Syrian border. Anadolu Agency/Getty Images hide caption

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Karyn Jackson (right) helped Fernando Rico, of Pasadena, Calif., complete a Covered California application for health insurance at an enrollment fair in 2014. Allen J. Schaben/LA Times via Getty Images hide caption

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Katherine Du/NPR

A lab worker exposes his arm to Aedes aegypti mosquitoes, which transmit Zika virus, during testing in the lab at Roosevelt Hospital in Guatemala City, Guatemala. Saul Martinez/Bloomberg via Getty Images hide caption

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While some scientists seek ways to stop the spread of Zika by mosquitoes, others have received new funding from the National Institutes of Health to track the genes and habits of the virus itself. Felipe Dana/AP hide caption

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In 2013, Zika virus was found in French Polynesia, including the island of Tahiti (above). Some 20,000 inhabitants were diagnosed with the disease. Andy Bardon/National Geographic hide caption

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No, he didn't repossess this car from a corrupt official. As a hobby, global health avenger Cees Klumper fixes up classic cars. This one is the actual El Camino used in the TV series My Name Is Earl. Klumper tracked it down and had it shipped to Geneva. Courtesy of Anneke Cees Klumper hide caption

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Contractors who supply workers to farmers say requirements of the Affordable Care Act and the immigration status of many of the workers create a Catch-22. Maguey Images/Getty Images hide caption

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