Ana Carolina Caceres is a journalist in Brazil. In a photograph in a recent story about her, she wears a garland of flowers, a simple necklace and a pleasant if somewhat nonplussed expression on her face. Caceres’ writing is clear and straightforward, as befits the blogger she is, but the story is not about her chosen profession – about what she does – but about who she is. Or rather a condition she has that some think should define her – or even have prevented her coming to birth.

Ms. Caceres was diagnosed at birth with microcephaly, the condition so much in the news as a result of a spike in cases associated with the spread of the Zika virus across Latin America.