The UK has closed all its “travel corridors” with other countries in an attempt to stem the spread of new CCP virus variants into the country. The measure, announced by Prime Minister Boris Johnson on Friday, came into force at 4 a.m. local time on Monday. The change means all passengers travelling to the UK must have a negative CCP (Chinese Communist Party) virus test which has been taken in the 72 hours before departure. Anyone arriving without a test result faces a fine of up to £500 ($677). Travellers must also transfer immediately into isolation upon arrival. The isolation period lasts for 10 days, unless the passenger tests negative after five days. Johnson said the government had to take additional steps to protect the country against “the risk of as yet unidentified new strains” coming from overseas which might turn out to be resistant to vaccines. “What we don’t want to …