Dr. Margaret Hamburg will have served almost six years as FDA commissioner by the time she leaves, far longer than the recent tenure for chiefs of the agency. J. David Ake/AP hide caption

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Scientists reprogrammed the common bacterium E. coli so it requires a synthetic amino acid to live. BSIP/UIG via Getty Images hide caption

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Arizona Department of Corrections inmate Joseph Wood was executed by lethal injection in July. It took 15 doses and nearly two hours for him to die. AP hide caption

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Belviq, a weight-loss drug from Arena Pharmaceuticals, was approved by the Food and Drug Administration in 2012. With the agency's approval of Saxenda in December, there are four new weight-loss pills available. Arena Pharmaceuticals Inc/Reuters/Landov hide caption

itoggle caption Arena Pharmaceuticals Inc/Reuters/Landov

The hepatitis C medication Sovaldi, from Gilead Sciences, costs $1,000 per pill. It's just one of the new medications introduced in the past year that can cure the disease within weeks or months. Courtesy of Gilead Sciences via AP hide caption

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Katie Clapp shares a laugh with her son Andy Tranfaglia, 25, at their home in West Newbury, Mass. Andy has a rare genetic condition called fragile X syndrome. Ellen Webber for NPR hide caption

itoggle caption Ellen Webber for NPR

Icon Genetics' Dr. Frank Thieme selects samples of Nicotiana benthamiana, a relative of tobacco, growing in a company greenhouse in Halle, Germany. The company uses the plants to produce antibodies that could be helpful for increasing supplies of ZMapp. Sean Gallup/Getty Images hide caption

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Shots - Health News

Answering Your Questions About Ebola Treatments And Vaccines

We answer listeners' questions about treatments and possible vaccines for Ebola.

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A man stands above a new Ebola treatment center in Monrovia, Liberia. Health workers in Liberia, the hardest-hit nation, have turned people away from treatment units because of shortages of beds and staff. Pascal Guyot/AFP/Getty Images hide caption

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Federal prosecutors allege two nursing homes in California have "persistently and severely overmedicated elderly and vulnerable residents." Antipsychotic drugs like risperidone, also known as Risperdal, can be dangerous for elderly people, but are frequently prescribed to nursing home patients. JB Reed/Bloomberg via Getty Images hide caption

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A Public Health Agency of Canada worker seen inside the National Microbiology Laboratory's Level 4 lab in Winnipeg. Public Health Agency of Canada/Nature hide caption

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Dr. Bruce Ribner, medical director of Emory University Hospital's infectious disease unit, embraces Dr. Kent Brantly (left) who was treated with an experimental Ebola medicine and released from the Atlanta hospital Thursday. John Bazemore/AP hide caption

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