US officials: The more we know about Zika, the scarier it is
The more researchers learn about the Zika virus, the scarier it appears, federal health officials say, as they urge more money for mosquito control and development of vaccines and treatments. Health officials say there's no risk of it spreading locally. The virus is mostly spread from a mosquito species not common in the United States. Zika can cause birth defects. The White house held a summit today on how to fight it.