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A farm in Iowa plans to slaughter more than five million chickens in response to an outbreak of bird flu.
April 21, 2015 This is the worst outbreak since the H5N2 influenza was first detected in December. The disease has been found in seven other states over the past five months.
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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