Maria Carolina Silva Floa, 20, looks down at her baby, Maria Gabriela Silva Alves, who was born with microcephaly, as they wait for her physiotherapy appointment at Pedro 1 Municipal Hospital in Campina Grande, Brazil.
Maria Carolina Silva Floa, 20, looks down at her baby, Maria Gabriela Silva Alves, who was born with microcephaly, as they wait for her physiotherapy appointment at Pedro 1 Municipal Hospital in Campina Grande, Brazil. Katie Falkenberg Los Angeles Times/TNS
Maria Carolina Silva Floa, 20, looks down at her baby, Maria Gabriela Silva Alves, who was born with microcephaly, as they wait for her physiotherapy appointment at Pedro 1 Municipal Hospital in Campina Grande, Brazil. Katie Falkenberg Los Angeles Times/TNS

Decoding Zika: Researchers identify virus’ key weapon

August 15, 2016 3:33 PM