On the lookout for SARS, an employee checks a baby's temperature at the Ben Gurion Airport in Israel, in 2003. The deadly virus quickly spread around the world once it reached Hong Kong, a central travel hub. Nir Elias/Reuters/Landov hide caption

toggle caption Nir Elias/Reuters/Landov

A health worker from Doctors Without Borders examines Ebola patient Finda Marie Kamano, 33, at her home in Conakry, Guinea, in April. The outbreak that began in February is still spreading in West Africa. Sylvain Cherkaoui/Cosmos/Courtesy of Doctors Without Borders hide caption

toggle caption Sylvain Cherkaoui/Cosmos/Courtesy of Doctors Without Borders

Doctors Aren't Sure How To Stop Africa's Deadliest Ebola Outbreak

  • Download
  • <iframe src="https://www.npr.org/player/embed/323213138/323351176" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

In this colored transmission electron micrograph, an infected cell (reddish brown) releases a single Ebola virus (the blue hook). As it exits, the virus takes along part of the host cell's membrane (pink, center), too. That deters the host's immune defenses from recognizing the virus as foreign. London School of Hygiene & Tropical Medicine/Science Source hide caption

toggle caption London School of Hygiene & Tropical Medicine/Science Source

Ebola Drug Could Be Ready For Human Testing Next Year

  • Download
  • <iframe src="https://www.npr.org/player/embed/301418627/301882848" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Testing for Ebola, a scientist in a mobile lab at Gueckedou, Guinea, separates blood cells from plasma cells to isolate the virus's genetic sequence. Misha Hussain/Reuters /Landov hide caption

toggle caption Misha Hussain/Reuters /Landov

Rose Komano, 18 and the mother of three, was the first Ebola patient to overcome the virus in southeastern Guinea, the epicenter of the outbreak. On April 3, she posed at a health clinic in the Gueckedou region. Misha Hussain /Reuters /Landov hide caption

toggle caption Misha Hussain /Reuters /Landov

The Ebola Survivors: Reborn But Not Always Embraced

  • Download
  • <iframe src="https://www.npr.org/player/embed/301439165/301749149" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The new normal in Guinea is washing hands with a mixture of water and bleach--shown here at the border entrance of Buruntuma, in the Gabu area on Tuesday. Tiago Petinga/EPA /LANDOV hide caption

toggle caption Tiago Petinga/EPA /LANDOV

The Ebola Outbreak 3 Weeks In: Dire But Not Hopeless

  • Download
  • <iframe src="https://www.npr.org/player/embed/300509073/300617940" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A nurse of the 'Doctors without Borders' medical aid organisation examines a patient in the in-take area at a center for victims of the Ebola virus in Guekedou, on April 1, 2014. The viral haemorrhagic fever epidemic raging in Guinea is caused by several viruses which have similar symptoms — the deadliest and most feared of which is Ebola. Seyllou/AFP/Getty Images hide caption

toggle caption Seyllou/AFP/Getty Images

Why Is Guinea's Ebola Outbreak So Unusual?

  • Download
  • <iframe src="https://www.npr.org/player/embed/297884573/298159587" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The fatality rate in an Ebola outbreak ranges from 25 percent to 90 percent, depending on the particular strain of the virus involved. Cynthia Goldsmith/ Centers for Disease Control and Prevention hide caption

toggle caption Cynthia Goldsmith/ Centers for Disease Control and Prevention