Sunak’s U-turn on China Covid tests is a political move, say scientists

Chief medical officer Chris Whitty told health secretary Steve Barclay there was no evidence tests on travellers would have any effect

Rishi Sunak's decision to perform a U-turn and impose Covid checks on travellers from China was dismissed on Saturday night as a purely political manoeuvre that would make no difference to the rise or fall of cases in the UK.

The health secretary Steve Barclay was briefed by the chief medical officer Chris Whitty on Thursday and was told there was no clear evidence of significant benefits from testing travellers from China. The Observer has learnt that on the following day, Barclay discussed the issues with Sunak, who nevertheless decided it was more important for Britain to align itself with those nations - the US, Japan, Italy and Spain - that had already imposed such tests.