Epicenter of the Zika Virus: New2016Updates022

Severina Carla da Silva, eats while writing down song lyrics as her son, Nicolas Davi Silva, 5, looks at his sister, Nivea Heloise Silva at their home on Tuesday March 15, 2016 in Recife, Brazil. Nivea was born with microcephaly. The Zika virus has been linked to the condition. (Photo by Matt McClain/ The Washington Post)

Severina Carla da Silva, eats while writing down song lyrics as her son, Nicolas Davi Silva, 5, looks at his sister, Nivea Heloise Silva at their home on Tuesday March 15, 2016 in Recife, Brazil. Nivea was born with microcephaly. The Zika virus has been linked to the condition. (Photo by Matt McClain/ The Washington Post)