Mosquito Season Means Zika Season, US Experts Warn     microcephaly

"We need a robust response to protect American women and reduce, to the greatest extent humanly possible, the number of families affected. We don't know who those children will be. We don't know where they will grow up, but anything we don't do now, we will regret not having done later," he said.

Frieden and other top doctors say Zika would not be a major threat except that it causes serious birth defects, including microcephaly, which literally means "small head."

"When a child is born with microcephaly, it's not because the skull was malformed, it's because the virus destroyed the brain cells, and the skull collapsed around the demolished brain," Frieden said.

From: http://www.voanews.com/content/mosquito-season-zika-season-congress-funding-us/3361095.html