A blood samples from pregnant women are analyzed fro the presence of the Zika virus, at Guatemalan Social Security maternity hospital in Guatemala City, Tuesday, Feb. 2, 2016. According to Guatemalan health authorities, the country does not have any confirmed case of pregnant women infected by Zika virus. The virus is suspected to cause microcephaly in newborn children. There is no treatment or vaccine for the mosquito-borne virus, which is in the same family of viruses as dengue. (AP Photo/Moises Castillo)
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