Kenyan health officials take the temperatures of passengers arriving at the Nairobi airport on Thursday. Kenya has no reported cases of Ebola, but it's a transportation hub and so is on alert.
Simon Maina/AFP/Getty Images
August 14, 2014 As the Ebola outbreak rages in West Africa, it is also unfolding — in a virtual sense — inside the computers of scientists trying to predict how far the outbreak will spread and when it will end.
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Developing a vaccine for meningitis B was tricky. Even the existing vaccine doesn't protect against all B strains.
December 12, 2013 It turns out that the bacteria that are responsible meningitis B have a sugar coating that makes them look a lot like human cells. That similarity makes development of a vaccine against the germs especially tricky.
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