South African youth will be able to make history, alongside their peers in the UK, as the world’s youngest bone marrow stem cell donors. This, Newsflash reports, the South African Bone Marrow Registry has been given the green light to allow 16- and 17-year olds to sign up as registered donors where previously, potential donors had to be 18 years and older. The registry’s donor recruitment official, Nadia Chalkley, says the process is simple.