Italy will require all workers to show a coronavirus health pass from Friday, one of the world's toughest anti-Covid regimes that has already sparked riots and which many fear will cause “chaos”, according to AFP.

More than 85 per cent of Italians over the age of 12 have received at least one shot of a Covid-19 vaccine, making them eligible for the so-called Green Pass certificate.

But according to various estimates, about 2.5 million workers, out of 23 million in total, are unvaccinated, and risk being denied access to the workplace from October 15.