Year in review: Zika virus devastates Brazil and spreads fear across Americas
The virus, little-known until this year, led to an upsurge in birth defects in Brazil
ZIKA'S INFLUENCE A young woman holds her daughter, born with microcephaly, outside their home in Recife, Brazil. Researchers this year linked the upsurge in microcephaly cases in Brazil to the mosquito-borne Zika virus.
Felipe Dana/AP Photo
A Brazilian mother cradles her baby girl under a bruised purple sky.