Three years ago, thousands of babies were born with brain damage in Brazil, after their mothers contracted the Zika virus during pregnancy - how are they doing now?
Zika virus outbreak
Katie Falkenberg's photo feature on mothers caring for children damaged by the Zika virus in Brazil was a Pulitzer Prize finalist in 2017.
Doctors treating children whose mothers were infected with Zika say microcephaly is not the only problem.
The BBC's Tulip Mazumdar takes a look ahead to what will be some of the key health-related stories in 2017.