The world's first baby has been born using a new three person fertility technique, New Scientist reveals. The baby boy has the usual DNA from his mum and dad, plus a tiny bit of genetic code from a donor. US doctors took the unprecedented step to ensure the baby boy would be free of a genetic condition that his Jordanian mother carries in her genes.<br/>Experts say the move heralds a new era in medicine and could help other families with rare genetic conditions. It is an entirely new method in fertilizing babies that have DNA from three people, the breakthrough that began in the late 1990s.