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RECIFE, BRAZIL - FEBRUARY 03:  Mother Daniele Santos changes her baby Juan Pedro, 2-months-old, who was born with microcephaly, on February 3, 2016 in Recife, Pernambuco state, Brazil. In the last four months, authorities have recorded thousands of cases in Brazil in which the mosquito-borne Zika virus may have led to microcephaly in infants. Microcephaly results in an abnormally small head in newborns and is associated with various disorders. The state with the most cases is Pernambuco, whose capital is Recife, and is being called the epicenter of the outbreak.  (Photo by Mario Tama/Getty Images)
RECIFE, BRAZIL - FEBRUARY 03:  Mother Daniele Santos changes her baby Juan Pedro, 2-months-old, who was born with microcephaly, on February 3, 2016 in Recife, Pernambuco state, Brazil. In the last four months, authorities have recorded thousands of cases in Brazil in which the mosquito-borne Zika virus may have led to microcephaly in infants. Microcephaly results in an abnormally small head in newborns and is associated with various disorders. The state with the most cases is Pernambuco, whose capital is Recife, and is being called the epicenter of the outbreak.  (Photo by Mario Tama/Getty Images)

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CDC urges U.S. to be prepared for Zika

The CDC is urging local and state government to be prepared for the Zika virus to spread. NIAID director Dr. Anthony Fauci discusses the danger of the virus in the U.S..

CDC urges U.S. to be prepared for Zika

The CDC is urging local and state government to be prepared for the Zika virus to spread. NIAID director Dr. Anthony Fauci discusses the danger of the virus in the U.S..