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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

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Nir Elias/Reuters/Landov

Magida Safaoui, right, and an assistant plate tomatoes at a Trio Toques event in April. Safaoui helps out the three chefs who run the restaurant. Doreen Akiyo Yomoah for NPR hide caption

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Doreen Akiyo Yomoah for NPR

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

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Cynthia Goldsmith/ Centers for Disease Control and Prevention