In this photo from 2014, passengers walk past the Middle East respiratory syndrome quarantine area at Manila's International Airport in the Phillipines. The virus is now raising public concern in South Korea. Aaron Favila/AP hide caption

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Why did a deliberately bad study showing the weight-loss benefits of chocolate get picked up by many news outlets? Science journalist John Bohannon — the man behind the study — says reporting on junk nutrition studies happens all the time. iStockphoto hide caption

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There are legal questions about how far employers can go to encourage participation in wellness programs. Bjorn Rune Lie/Ikon Images/Getty Images hide caption

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While governor of Texas, Rick Perry refused to accept federal funds to expand Medicaid. Rick Wilking/Reuters/Landov hide caption

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The man who died of Lassa fever flew from West Africa to New York's John F. Kennedy Airport. Spencer Platt/Getty Images hide caption

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Health workers collect the body of a cholera victim in Petionville, Haiti, February 2011. The cholera outbreak in Haiti began in October 2010. Nearly 9,000 people have died. David Gilkey/NPR hide caption

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A security fence surrounds the main part of the U.S. Army's Dugway Proving Ground, a testing laboratory in the Utah desert. The Army says it mistakenly shipped live anthrax from Dugway to several labs in the U.S. and Korea. George Frey/Getty Images hide caption

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New Jersey Gov. Chris Christie participated in a roundtable discussion at the Farnum Center in Manchester, N.H. earlier this month. Jim Cole/AP hide caption

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A new smartphone app gives a close-up view of a patient's eye. Screengrab from video by Peek Vision, produced in collaboration with Sony Mobile. hide caption

itoggle caption Screengrab from video by Peek Vision, produced in collaboration with Sony Mobile.