British coronavirus variant found in traveller to Sweden

STOCKHOLM: The new variant of the coronavirus circulating in Britain has been detected in Sweden after a traveller from Britain fell ill on arrival and tested positive for it, the Swedish Health Agency said on Saturday.

Health Agency official Sara Byfors told a news conference the traveller, who was not identified, had kept isolated after arrival to Sweden and that no further positive cases had so far been detected.

The new variant is thought to be more transmissible than others currently circulating.

Sweden imposed travel restrictions earlier this month on passengers from Britain amid concerns over the variant. Similar measures have been taken by several other countries in the EU and across the world.

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The main worry is that the variant is significantly more transmissible than the original strain. It has 23 mutations in its genetic code – a relatively high number of changes – and some of these are affecting its ability to spread.

Scientists say it is about 40%-70% more transmissible. The UK government said on Saturday it could increase the reproduction “R” rate by 0.4.

This means it is spreading faster in Britain, making the pandemic there yet harder to control and increasing the risk it will also spread swiftly in other countries.

“The new B.1.1.7 … still appears to have all the human lethality that the original had, but with an increased ability to transmit,” said Martin Hibberd, professor of emerging infectious disease at the London School of Hygiene & Tropical Medicine.

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