Mutation, then Explosive Outbreak

In early 2014, the Ebola virus picked up a mutation that made it better at infecting human cells—a change that may have helped ignite West Africa’s devastating outbreak that left more than 11,000 dead.
 
It’s too early to definitively blame the mutation for the outbreak’s explosiveness but 2 independent teams of scientists found that Ebola viruses with the A82V mutation quickly spread beyond the outbreak’s ground zero in Guinea.
 
The Quote: “Its appearance coincided with the virus taking off, but others factors were probably more important, like the movement of infected people into urban areas and lack of proper burials,” says Jonathan Ball from the University of Nottingham, who led one of the teams.
Source: The Atlantic

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