Oxford professor Anthony Harnden, deputy chair of a scientific committee on vaccination that advises the government, said the variants found in SA and Brazil were of concern because Covid-19 vaccines may not be effective against them.
Britain has the highest death toll in Europe from Covid-19, at close to 100,000, and has been in lockdown for most of January with hospitals struggling to cope with record numbers of seriously ill Covid patients. Prime Minister Boris Johnson said on Friday the English variant may be associated with a higher level of mortality, though scientists have said the evidence on that remained uncertain, a message Hancock re-emphasised on Sunday.
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