Coronavirus: Bill Gates says richest countries could be 'close to normal' by late next year if vaccine found

The world's richest countries could be back 'close to normal' by late 2021 if a coronavirus vaccine is found, Bill Gates has said. But the Microsoft co-founder warned that this is the 'best case' scenario, as it still remains uncertain whether any vaccines will work. The head of the World Health Organisation (WHO), Tedros Adhanom Ghebreyesus, said on Tuesday a vaccine may be ready by the end of the year - earlier than suggested by the UK's chief scientific adviser Sir Patrick Vallance.