Boris Johnson seemed to just tell Tory MP Simon Hoare that if he is right that Cummings's decision to leave quarantine at home in London and quarantine in Durham reduces the appetite of British people to quarantine if called on to do so then that won't be a problem so long as...

we all wash our hands, social distance and so on to keep the rate of transmission down. Slightly odd statement on the eve of the introduction of the new test, trace and isolate system, which will call on many thousands of us to quarantine as and when a call centre operative...

ask us to do so.