Don't panic over door-to-door testing, writes Professor BRENDAN WREN 

PROFESSOR BRENDAN WREN: The sight of government testers going door-to-door in search of the new Covid variants, might look like a scene from a horror movie, but there's no cause for alarm. https://www.dailymail.co.uk/debate/article-9216585/Dont-panic-door-door-testing-writes-Professor-BRENDAN-WREN.html?ns_mchannel=rss&ns_campaign=1490&ito=1490