Greg Fell director of public health in Sheffield, said his team had been monitoring the new strain – referred to as VUI-21MAY-01 or AV.1 – after Public Health England (PHE) announced 49 cases were identified, mostly in Yorkshire and the Humber region.
But Mr Fell stressed there is no evidence to suggest this strain is any more transmissible than other variants or that the vaccines do not work against it.
Mr Fell issued a statement as Downing Street also said the emergence of this new variant will continue to be monitored.
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The Prime Minister’s official spokesman said: “There have been a number of variants throughout the pandemic and there will continue to be so.
“But again, as you’ve seen throughout the pandemic, that’s what we’ve done and we won’t hesitate to put in measures that we think are necessary to try and tackle the transmission of any variants.”
Asked whether the discovery of the new variant would have an impact on the next stage of restrictions lifting on June 21, the spokesman said the five-week gap between measures relaxing would allow the variant to be monitored.
He added: “As the Prime Minister has said, we will continue to look at all the statistical evidence and data, and we’ll set out our plans as soon as the data allows.”
Mr Fell said in his statement: “We have been monitoring VUI-21MAY-01 and we’re managing this carefully as we do with all outbreaks across the city.
“There is no evidence to suggest this strain is any more transmissible than other strains identified in the UK and across the world, or to suggest the vaccine doesn’t work against this strain.
“Please don’t be alarmed, we want you to continue doing what you have been for the past year. Follow the guidance, continue to wash your hands regularly and wear a mask indoors.”
Mr Fell said: “We work very closely with NHS Test and Trace and Public Health England on these matters to make sure all appropriate public health interventions are being carried out, including any additional contact tracing and targeted testing.
“Where cases have been identified, additional follow-up of cases, testing of contacts and targeted case finding will be used to limit the spread of variants.
He said: “If you have symptoms of Covid-19 you should seek to have a PCR test as soon as possible. If you are tested positive then you and your household must stay at home and not leave the house for any reason for 10 days.”
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