Omicron and Delta spell return of restrictions

A man takes part in a demonstration against coronavirus restrictions in Vienna in Austria (Lisa Leutner/AP)

Governments around the world are considering implementing fresh Covid-19 restrictions as the Delta variant pushes up cases in Europe and fears grow over the Omicron strain.

Greeks over the age of 60 who refuse coronavirus vaccinations could be hit with monthly fines of more than one-quarter of their pensions — a get-tough policy that the country’s politicians say will cost votes but save lives.