Brazil-Science & Health
  • Source: James Jordan/flickr

    The mosquito-carried virus is linked to a surge in cases of children born with brain damage.

    LAST UPDATE : Jan 22, 2016, 3:51 PM EST
  • The Ebola virus. Getty Images

    The remaining handful of cases of the virus are in Guinea, where he had visited.

    LAST UPDATE : Nov 11, 2015, 4:36 PM EST