Over two-thirds of the world’s most senior executives in the healthcare industry say a Covid-19 vaccine won't be available until the second half of next year at the earliest.

A survey of nearly 200 C-suite managers by independent investment bank Lazard suggests that a vaccine is still some way off — some 73% of respondents predict a Covid-19 inoculation will come between later next year and the first six months of 2022. And nearly two-thirds, or 64%, said that the pandemic will continue over that period.