Video: Zika virus could spread to all the Americas

The mosquito-borne disease has raged in South America and other regions for months. The World Health Organization said it continues to spread.
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The mosquito-borne disease has raged in South America and other regions for months. The World Health Organization said it continues to spread.

Genetically modified mosquitoes clear key hurdle for Key West test

March 11, 2016 11:55 AM