Michael Gove, who has been conducting a review into the idea, said there were benefits in a system of proof for negative tests and vaccines that could help reopen parts of society.
The interests of senior civil servants and special advisers should be published to introduce further transparency in government, a top civil servant has been told.
Breaking: UK cases of Indian Covid variant double to nearly 7,000 in one week
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A total of 6,959 cases of the Indian variant of coronavirus have now been confirmed in the UK, Public Health England said. The figures are up to 26 May, and represent a rise of 3,535 on the previous week.
The Government said a further 10 people had died within 28 days of testing positive for Covid-19 as of Thursday, bringing the UK total to 127,758.
Separate figures published by the Office for National Statistics show there have now been 153,000 deaths registered in the UK where Covid-19 was mentioned on the death certificate.
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A register of interests for senior civil servants and special advisers in the UK should be published, a top civil servant has been told.
Lord Eric Pickles, chair of the Advisory Committee on Business Appointments, says the government has to introduce further transparency measures.
The call follows the scandal involving David Cameron, senior civil servantsm and the collapsed firm Greensill Capital.
Senior civil servants and special advisers should start publishing any external work they undertake in a public register of interests, in order to prevent any repeat of the lobbying scandal involving David Cameron and senior civil servants, the chair of the watchdog that oversees post-governmental jobs for ministers and senior civil servants has said.
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