A doctor draw blood from Luana, who was born with microcephaly, at the Oswaldo Cruz Hospital in Recife, Brazil, Jan. 28. Brazilian officials still say they believe there's a sharp increase in cases of microcephaly and strongly suspect the Zika virus, which first appeared in the country last year, is to blame. The concern is strong enough that the U.S. Centers for Disease Control and Prevention this month warned pregnant women to reconsider visits to areas where Zika is present.
A doctor draw blood from Luana, who was born with microcephaly, at the Oswaldo Cruz Hospital in Recife, Brazil, Jan. 28. Brazilian officials still say they believe there's a sharp increase in cases of microcephaly and strongly suspect the Zika virus, which first appeared in the country last year, is to blame. The concern is strong enough that the U.S. Centers for Disease Control and Prevention this month warned pregnant women to reconsider visits to areas where Zika is present. Felipe Dana AP
A doctor draw blood from Luana, who was born with microcephaly, at the Oswaldo Cruz Hospital in Recife, Brazil, Jan. 28. Brazilian officials still say they believe there's a sharp increase in cases of microcephaly and strongly suspect the Zika virus, which first appeared in the country last year, is to blame. The concern is strong enough that the U.S. Centers for Disease Control and Prevention this month warned pregnant women to reconsider visits to areas where Zika is present. Felipe Dana AP

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