Allowing summer holidays abroad risks another lockdown, Johnson is warned

Sage experts are worried about overseas breaks leading to rise in vaccine-resistant variants in UKCoronavirus – latest updatesSee all our coronavirus coverageLifting the ban on foreign holidays in the coming months could risk another lockdown next winter, Boris Johnson is being warned, amid mounting alarm about a third wave of infections sweeping continental Europe.Scientific experts and opposition politicians are urging the government to be extremely cautious before loosening travel restr