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Experts at the Atlanta-based Centers for Disease Control and Prevention are warning that the spread of the Zika virus to the U.S. could get worse before it gets better.
Experts at the Atlanta-based Centers for Disease Control and Prevention are warning that the spread of the Zika virus to the U.S. could get worse before it gets better.

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    Growing concerns as researchers battle Zika virus

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Growing concerns as researchers battle Zika virus

CNN's Dr. Sanjay Gupta discusses the latest developments in the spread of the Zika virus.

Growing concerns as researchers battle Zika virus

CNN's Dr. Sanjay Gupta discusses the latest developments in the spread of the Zika virus.