Covid live: UK sending poor countries ‘to back of queue’ by ordering boosters; Iran calls for urgent pandemic action

UK accused of sending countries who are struggling to access vaccines to back of queue'; pandemic No 1' problem in Iran, says supreme leader

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11.10pm BST

Fully vaccinated people in England will no longer be legally required to self-isolate upon contact with a positive Covid case from Monday, and will instead be advised to take a PCR test - in a marked shift from rules that have led to more than 14m instructions to stay at home.

Ministers have confirmed that the legal requirement to isolate will be replaced with non-binding advice to take a test for the double-jabbed, as well as those 18 and under. And those who do come into contact with the infected will not be told to isolate while waiting for their results. For people who do test positive, isolation will continue.

Related: No need for fully-jabbed Covid contacts to isolate from Monday, confirms Javid

10.47pm BST

Two US companies, Pfizer and Moderna, have raised the prices of their Covid-19 vaccines after data from clinical trials showed their mRNA formula was more effective than cheaper vaccines from Britain's AstraZeneca and the American drugs maker Johnson & Johnson.

AstraZeneca and Johnson & Johnson have pledged to provide their doses on a not-for-profit basis until the pandemic ends.

Related: Covid-19 vaccines: the contracts, prices and profits