Was Covid just a 'warning shot'?

IT'S like the stuff of science fiction, but in reality, scientists are constantly on the lookout for the next disease that could trigger a devastating global pandemic.

- BY SARA WALLIS

Covid-19 was not the only one. "Disease X", as it was dubbed by scientists in 2018, is the unknown pathogen around the corner.

In this slightly terrifying documentary, virologist Dr Chris van Tulleken embarks on a global investigation into the most urgent science story of our time.