Ebola battle 'being lost' say Medecins san Frontier

The battle against the Ebola outbreak in west Africa is being lost, according to the head of the international medical charity Medecins san Frontier.

Joanne Liu told the United Nations that world leaders were failing to address the worst Ebola epidemic in history.

Experts are warning that many thousands could become infected in the near future.

Alpa Patel reports.