Rare condition in Brazil town popular for cousin marriage
Giulia Granchi and Vitor Tavares BBC Brasil reporters sent to Serrinha dos Pintos Mariana Castiñeiras/Caroline Souza Affected families in Serrinha dos Pintos lived without a diagnosis until geneticist Silvana Santos arrived Before Silvana Santos arrived in the little town of Serrinha dos Pintos more than 20 years ago, residents had no idea why so many…