The global public health body said it was monitoring the mutation, which was a "concern", but that it was too early to tell if it posed any risk to humans or would undo the impact of a potential vaccine.
"So the immediate steps that are taken in Denmark are to limit further spillover of the virus and then making sure that these mink are culled".
Farmers in Wisconsin are advised to increase safety measures when working with their mink.
As in the case of live-animal meat markets, on fur farms, minks and other animals killed for their skin are confined to cramped wire cages adjacent to one another, making it very easy for infectious diseases to spread through the exchange of urine, excrement, pus, and blood.
Denmark had announced strict new lockdown rules on Thursday in the north of the country after the authorities discovered a mutated coronavirus strain in minks bred in the region, prompting a nationwide cull that will devastate the large pelt industry.
Denmark's police, army and home guard will be deployed to speed up the culling process, PM Frederiksen was quoted as saying.
The World Health Organization said on Friday that proper studies to evaluate the impact of these mutations are needed.
Early this week, Prime Minister Mette Frederiksen said the government wants to cull all minks on farms to minimise the risk of the weasel-like mammals' re-transmitting COVID-19 to humans. "Mink variants of the virus have been detected in 214 people among 5,102 samples that have been completely sequenced from week 24 to week 42, from the beginning of June to mid-October, when there had been an outbreak of COVID-19 among minks".
"COVID-19 infection had been registered in Denmark on 216 mink farms by November 6", the SSI said.
If the coronavirus is mutating, will it affect the vaccines?
Is the mutation a worry? Viruses survive by adapting to new environments and most mutations of the coronavirus are harmless. Second, when a virus enters a new population, a lot of antibodies are created in the population, which is commonly known as herd immunity.
"Instead of waiting for evidence, it is better to act quickly", said Tyra Grove Krause, head of the Statens Serum Institut, a government agency that maps the spread of the coronavirus in Denmark.
London, Nov 7 (IANS) The UK has imposed an immediate for all travellers from Denmark amid concerns of a mutated Covid-19 strain found in minks that has been transmitted to over 210 people in the Scandinavian country.
Britain said on Friday it would require all travelers arriving from the Nordic country to self-isolate on arrival as a result of the outbreak, but it did not consider them to be a risk to the country.
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