(NPR) – While countries routinely collect child mortality data, very little is known about the lives — and premature deaths — of sex workers’ children. Sometimes there are no records of these kids’ births or deaths.

“They could be born in a brothel and their birth is not registered. So for many of these children, on paper, they may not exist,” says Dr. Wendy Macias-Konstantopoulos, an associate professor at Harvard Medical School and a specialist in health equity. (Read More)