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Sep 26, 2014 12:08 PM ET
With the potential for more than 1 million people to contract Ebola, every second, and every bit of help counts. Tara explains what's currently being done with U.S. aid. Is it enough?
Sep 25, 2014 11:17 AM ET
There have been other Ebola outbreaks, and while containing them is never easy, sometimes conditions on the ground augur for a better outcome. Trace explains why the current outbreak in West Africa is so tough to slow down.
Aug 6, 2014 07:30 AM ET // Eric Niiler
Many potential drug cures remain in the laboratory -- and one treatment won't fit all.
Aug 2, 2014 01:10 PM ET // Tia Ghose, LiveScience
A survivor's blood would be needed to create a treatment for the deadly virus, reports say.
Aug 1, 2014 08:00 AM ET
As West African nations handle an outbreak of the deadly Ebola virus, Trace takes a look at preparedness in other nations and assesses the chances of the illness going terrifyingly global.
Feb 24, 2014 09:00 AM ET // AFP
The California children tested negative for polio, and all had been vaccinated.
Jun 7, 2011 08:31 AM ET // John D. Cox
A new study shows how regional climate differences controlled the intensity of outbreaks of plague in China.
Feb 6, 2012 05:33 PM ET // Benjamin Radford
The recent outbreak of mass hysteria at a school in Upstate New York is not that unique.