Since the World Health Organization reported an Ebola outbreak in Uganda on Saturday, the number of cases has risen to 36 from 20. The cases remain limited to a small area in western Uganda. An international team is on the scene to identify the source and contain the outbreak.
The prefrontal cortex, the brain's executive control center, develops more slowly than the limbic system, which controls arousal and reward. The mismatch makes it harder for teens to maintain concentration behind the wheel.
A former New Hampshire hospital employee was arrested in connection with an outbreak of hepatitis C. He's accused of tainting syringes that were later used on patients. Now officials are investigating whether patients in other states were exposed.
As BPA is phased out of some plastics, there are questions about the safety of other chemicals. A suit has been filed against Eastman, a company that makes a new BPA-free plastic called Tritan. Do other chemicals carry the same risks alleged for BPA?
Scientists gather in New York to consider the future of bird flu research after a moratorium on the work passes. Critics say the work and its findings could pose security risks, but scientists defend their experiments as preparation for outbreaks.
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