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Source: World Health Organization - Credit: Michaeleen Doucleff and Alyson Hurt/NPR
CLICK HERE - RESEARCH - Reduced evolutionary rate in reemerged Ebola virus transmission chains
The West African countries at the center of the epidemic have had flareups even after being declared Ebola-free by the World Health Organization.
npr.org - by Michaeleen Doucleff - April 29, 2016
Just when health officials think the Ebola outbreak is over in West Africa, the virus pops up again seemingly out of the blue. It's happened at least five times so far.
Now scientists are starting to figure out why: The virus can lay dormant in a survivor for more than year and then re-emerge to infect others.
It's called a "persistent infection." It's rare. But it has played a big role in keeping Ebola around in Liberia, an international team of scientists reports Friday in the journal Science Advances.
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Ebola virus does a total shutdown to hide before a fresh strike
newscientist.com - by Debora MacKenzie - April 29, 2016
Ebola refuses to die. Affected West African countries have repeatedly stopped transmission of the virus, only for fresh outbreaks to appear, seemingly out of nowhere. . . .
. . . At least seven of these outbreaks were triggered by the virus lingering silently in people who have recovered from Ebola. By tracing its evolution, researchers have now discovered how the virus does this: it completely shuts down and doesn’t even replicate – something never seen before in this type of virus.
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