coronavirus strain.Domestic trips were expected to resume from April 12 following the launch of Prime Minister Boris Johnson's roadmap to ease coronavirus lockdown restrictions last week, with a date for foreign holidays yet to be announced.But plans could be ditched after a new Covid variant has arrived in Britain from Brazil, with one of six people to test positive on Friday and Saturday going missing as tracers try to track them down.Surge testing for the new mutation is being launched in South Gloucestershire after two people at a home in South Gloucestershire were found to be infected.Labour MP Yvette Cooper warned against booking summer holidays abroad, adding that border controls may need to get stricter."There is a concern about.