Outbreaks are inevitable, pandemics are optional,” says Dr Larry Brilliant, a leading figure in the successful global campaign to eradicate smallpox.

But does the flawed international response to the Ebola outbreak suggest it is now less likely that the world will come together to defeat diseases with pandemic potential?

The Inquiry meets Dr Brilliant and other expert witnesses: Dr Malik Peiris, who identified SARS; Dr Julie Gerberding, president of the Vaccine division at Merck; and Ian Goldin, formerly of the World Bank.

Presenter: Helena Merriman Producers: Charlotte Pritchard and Neal Razzell Editor: Richard Knight