CDC braces for Zika’s US invasion as scientists watch virus melt fetal brain

Ars Technica » Scientific Method 2016-04-01

A female Aedes aegypti mosquito takes flight after a blood meal. (credit: CDC)

The Centers for Disease Control and Prevention gathered more than 300 local, state, and federal authorities and experts at its Atlanta headquarters Friday to prepare for clusters of mosquito-transmitted Zika infections on the US mainland.

“The mosquitoes that carry Zika virus are already active in US territories, hundreds of travelers with Zika have already returned to the continental US, and we could well see clusters of Zika virus in the continental US in the coming months,” CDC Director Tom Frieden said in a statement prior to today’s meeting. “Urgent action is needed, especially to minimize the risk of exposure during pregnancy.”

Zika, a virus that has been tearing across Central and South America since last year, is mostly transmitted by mosquito, but it can also be spread through sexual contact. Generally the virus only causes mild illness, with symptoms including fever, rash, pink eye, and aches. But in the recent outbreaks, Zika has been linked to rare cases of paralyzing auto-immune disease, called Guillain-Barré syndrome. Of most concern, it's also linked to devastating birth defects, including microcephaly, in which babies are born with small, malformed heads and brains.

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