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Expert Voices

The next Ebola will come from _____.

Rebecca Zisser / Axios

Influenza, Ebola, HIV — these viruses all made the jump from chickens, bats and chimpanzees to us. Most viruses that infect humans start this way. Some don't become contagious, but others —take the 1918 flu that killed at least 20 million people — rapidly spread across continents.

We asked four researchers where the next disease to threaten us might emerge from:

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