Zika epidemic sheds light on Brazil's 'invisible children'

Exclusive: families of thousands of babies born with neurodevelopmental disorders may get help for first time

Brazil's "invisible children", the thousands of babies born with neurodevelopmental disorders, have been brought out of the shadows by the Zika virus epidemic and their families may get help for the first time.

Almost 4,000 babies were born in Brazil with microcephaly as a result of Zika virus infection - a brain malformation that left them with small and misshapen heads and poor developmental prospects.