Covid live: AY.4.2 strain of Delta variant under investigation in UK; Pfizer says jab shows 91% efficacy in children



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Summary



1.24pm EDT13:24

UK health agency investigating new strain of Delta variant

The UK Health Security Agency today announced the offshoot of Delta, known as AY.4.2 has been designated a variant under investigation due to it becoming increasingly common in the UK.

“There is some early evidence that it may have an increased growth rate in the UK compared to Delta,” the agency said, although they note the variant does not appear to cause more severe disease, and Covid jabs do not seems to be less effective against it.

The UKHSA added more evidence is now needed to know whether the rise in the variant is due to changes in the virus’ behaviour or to epidemiological conditions.

UKHSA added that in the past week, AY.4.2 accounted for around 6% of all Delta cases in England. However experts have previously said it is unlikely the variant is behind the rising number of Covid cases seen in England.

Dr Jenny Harries, Chief Executive of the UK Health Security Agency, said the emergence of the variant should act as “objective evidence” that the pandemic is not over, adding:


Viruses mutate often and at random, and it is not unexpected that new variants will continue to arise as the pandemic goes on, particularly while the case rate remains high.

It is testament to the diligence and scientific expertise of my colleagues at the UKHSA, and the genomic sequencing capacity developed through the pandemic, that this new variant has been identified and analysed so quickly.

Chief executive of the UK Health Security Agency Dr Jenny Harries, during a media briefing in Downing Street, London.


Chief executive of the UK Health Security Agency Dr Jenny Harries, during a media briefing in Downing Street, London. Photograph: Toby Melville/PA

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England’s R number rises to between 1 and 1.2 – UKHSA



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Norway opts not to give 12-15 year-olds second vaccine doses yet



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More than half of US states have introduced new laws to restrict public health actions, including policies requiring quarantine or isolation and mandating vaccines or masks.

Between the new laws and the massive workforce departures during the pandemic, public health in America is now in crisis, experts say.

The new restrictions and shortages not only affect responses to the coronavirus but also make it harder to contain outbreaks of the flu, measles and other health crises, and they put the US in a weaker position to combat future pandemics.

Just as the pandemic has fuelled a burnout crisis among frontline medical staff, it has been calamitous for the mental health of workers in public health. Marcus Plescia, chief medical officer at the Association of State and Territorial Health Officials, told the Guardian:


We’re very, very concerned about the rolling back of public health powers. We thought there was going to be a renaissance for public health, and we may be at the cusp of a major decline.

Separate investigations by Kaiser Health News and the New York Times found that at least 32 states have introduced about 100 new laws to restrict state and local authorities from addressing health crises.

David Rosner, a public health and social historian at Columbia University, told the Guardian:


It’s a pretty grim future. This is an eye-opening moment in American history, where we see all of these traditions and ideas being mobilised to basically create discord rather than harmony around disease. I’ve just never seen this before.

Legislators in every US state have proposed bills to permanently limit officials’ ability to protect the public’s health. Some did not make it through the legislature or were vetoed by governors, while others are mired in legal battles.



8.11am EDT08:11

Pfizer says Covid vaccine shows more than 90% efficacy in children

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