The Microsoft chief said “we’re not ready” for the next epidemic at a 2015 Ted Talk, claims which have resurfaced thanks to journalist Brian Walsh’s new book End Times, which examines the existential threats to humanity.
Mr Gates said a deadly disease outbreak is a bigger threat than a nuclear war, yet little is being done to prepare.
The 63-year old said: “When I was a kid, the disaster we worried about most was a nuclear war. That’s why we had a barrel-like this down in our basement, filled with cans of food and water.
“When the nuclear attack came, we were supposed to go downstairs, hunker down, and eat out of that barrel.