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A Virus Even More Dangerous Than Zika to Pregnant Woman

The Zika virus must take the “side roads” into the placenta to infect a fetus, one researcher said — but the Rift Valley fever virus takes the “expressway.”
A blood sample taken by a veterinary worker from a sheep in Naivasha, Kenya. Rift Valley fever can pass from livestock to humans.

The Hole Story: How Mosquitoes Seek Out Gaps in Nets or Screens

It’s a hot and humid summer night, the window is open, a breeze filters in, and you begin to drift off to sleep when you hear the maddening buzz of a mosquito at your ear. After several unsuccessful slaps to the side of your head, you flip on the lights and see a little hole in your window screen.
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