Four more cases of Zika are thought to have originated in Miami, and crews are out every day clearing drains and spraying insecticide. But experts say finding a Zika-infected mosquito is like finding a needle in a haystack. David Bengaud has more.
World - CBSNews.com, CBS News: World
Tue, 08/09/2016 - 8:10pm
Four more cases of Zika are thought to have originated in Miami, and crews are out every day clearing drains and spraying insecticide. But experts say finding a Zika-infected mosquito is like finding a needle in a haystack. David Bengaud has more.