Shops are closed in Monrovia's West Point neighborhood as part of a quarantine to contain the spread of Ebola. Zoom Dosso/AFP/Getty Images hide caption

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CDC Director On Ebola: 'We Are Definitely Not At The Peak'

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Ebola virus survivor Dr. Kent Brantly (center) and his wife, Amber (left), walk at a news conference at Emory University Hospital in Atlanta Thursday. Brantly and aid worker Nancy Writebol were discharged from the hospital less than a month after they contracted Ebola while treating patients in Liberia. Erik S. Lesser/EPA/LANDOV hide caption

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Police officers guard an entrance to Emory University Hospital after an ambulance arrived transporting an American that was infected with the Ebola virus on Saturday. A specially outfitted plane carrying Dr. Kent Brantly from West Africa transpoted him to a military base in Georgia. Another American with Ebola is expected to join him at the hospital in a few days. David Goldman/AP hide caption

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In 1995, amid an Ebola outbreak, Zairian Red Cross personnel picked up sick people and bodies left on the streets of Kikwit, 250 miles from the capital Kinshasa. Jean-Marc Bouju/AP hide caption

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Why Treating Ebola With An Experimental Serum Might Help

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Red Cross volunteers prepare to bury the body of an Ebola victim in Pendembu, Sierra Leone, early this month. Tommy Trenchard for NPR hide caption

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As Ebola Surges, CDC Sends Aid And Warns Against Travel

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The CDC's director, Tom Frieden, testified before a congressional subcommittee Wednesday regarding a recent anthrax incident and lab safety improvements he is instituting. AFP/Getty Images hide caption

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Head Scientist At CDC Weighs Costs Of Recent Lab Safety Breaches

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Particles of H5N1 virus — a particularly dangerous type of bird flu that can infect people — attack lung cells. Chris Bjornberg/Science Source hide caption

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Feds Tighten Lab Security After Anthrax, Bird Flu Blunders

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Sick with chikungunya, Karla Sepulveda, 5, waits in a public hospital with her grandmother in Boca Chica, Dominican Republic, on May 15. The Caribbean nation has reported more than 100,000 cases this year. Ezequiel Abiu Lopez/AP hide caption

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Chikun-What? A New Mosquito-Borne Virus Lands In The U.S.

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Deaths from oxycodone overdoses fell sharply in Florida after the state cracked down on pain clinics and implemented dispensing restrictions. Robin Nelson/Zumapress/Corbis hide caption

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Dr. Lisa Sterman held a Truvada pill at her office in San Francisco in 2012. She prescribed Truvada to patients at high risk for HIV infection even before the Food and Drug Administration approved the medicine explicitly for that purpose. Jeff Chiu/AP hide caption

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