A pregnant woman sits on a bed after being released from the hospital where she was treated for the Zika virus in Cucuta, Colombia, on Sunday, Feb. 7, 2016. Alejandro Gaviria, Colombia's health minister, says the country has nearly 20,500 cases of the mosquito-borne Zika virus.
A pregnant woman sits on a bed after being released from the hospital where she was treated for the Zika virus in Cucuta, Colombia, on Sunday, Feb. 7, 2016. Alejandro Gaviria, Colombia's health minister, says the country has nearly 20,500 cases of the mosquito-borne Zika virus. Dania Maxwell Bloomberg
A pregnant woman sits on a bed after being released from the hospital where she was treated for the Zika virus in Cucuta, Colombia, on Sunday, Feb. 7, 2016. Alejandro Gaviria, Colombia's health minister, says the country has nearly 20,500 cases of the mosquito-borne Zika virus. Dania Maxwell Bloomberg

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February 16, 2016 8:05 PM

Medical experts: We know little about Zika

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