In July 2014, a Liberian diplomat called Patrick Sawyer flew to Nigeria on his way to a conference. He was taken ill at an airport in Lagos and collapsed. At the time, government hospitals were on strike and there were no public doctors to treat him. So Mr Sawyer was taken to a private medical centre run by Dr Ameyo Adadevoh. Her action is credited with ensuring that - unlike neighbouring countries - Nigeria had no widespread ebola outbreak and she's seen as a hero. Dr Adadevoh's son Bankole Cardoso tells her story.

Dr Ameyo Adadevoh and her son Bankole Cardoso