A woman is vaccinated at a health center in Conakry, Guinea, during the clinical trials of a vaccine against the Ebola virus. Cellou Binani /AFP/Getty Images hide caption

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Cellou Binani /AFP/Getty Images

First Ebola Vaccine Likely To Stop The Next Outbreak

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Aedes aegypti mosquitoes in a lab in Recife, Brazil. Mario Tama/Getty Images hide caption

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Mario Tama/Getty Images

How An Electric Shock Could One Day Protect You From Zika

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This year's flu vaccine protects against a few different virus strains, including the H1N1 seen here. The fuzzy outer layer is made of proteins that allow the virus to attach to human cells. NIAID/Flickr hide caption

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NIAID/Flickr

Inside Each Flu Shot, Months Of Virus Tracking And Predictions

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April 1959: Bottles containing the polio vaccine. M. McKeown/Getty Images hide caption

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M. McKeown/Getty Images

The Oral Polio Vaccine Can Go 'Feral,' But WHO Vows to Tame It

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Two polio cases have been reported in Ukraine, where some parents are fearful of vaccinations. Above: A child receives the diphtheria, whooping cough and tetanus vaccine in a children's hospital in Kiev. Sergei Chuzavkov/AP hide caption

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Sergei Chuzavkov/AP

A woman receives the rVSV-ZEBOV Ebola vaccine at a clinical trial in Conakry, Guinea. The vaccine appears effective after only one shot. Cellou Binani/AFP/Getty Images hide caption

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Cellou Binani/AFP/Getty Images

Ebola Vaccine Hailed As 'Game Changer' In Fight Against The Virus

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A baby helps make history. The Kenyan child is receiving the new malaria vaccine — the first ever that can wipe out a parasite — as part of a clinical trial. Karel Prinsloo/AP hide caption

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Karel Prinsloo/AP

Why A Vaccine That Works Only A Third Of The Time Is Still A Good Deal

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