Spanish coronavirus mutation blamed for Europe’s second wave
Holidaymakers spread the new Covid-19 variant across the continent
Europe’s second wave of coronavirus was accelerated by a new viral mutation that emerged from a cluster of farms in northern Spain, according to research published today by a Swiss university.
The new variant, first detected in June, “has spread rapidly through much of Europe”, the Financial Times reports, “and now accounts for the majority of new Covid-19 cases in several countries - and more than 80% in the UK”.
The study’s lead author, University of Basel evolutionary geneticist Emma Hodcroft, said a “super-spreading event among agricultural workers” transmitted the 20A.EU1 mutation of the virus into the local population, where it was picked up by visitors from across the continent.
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“What we think happened is that rising cases in Spain combined with that increase in holiday travel allowed the virus to move to many different countries across Europe and, when it got there, it was able to spread quite successfully,” she told BBC Radio 4’s Today programme.
The theory “raises questions about whether the spiralling second wave - which is forcing European nations to retreat back into national shutdowns - could have been averted by improved screening at airports and borders”, says the Daily Mail.
Viruses naturally mutate as they spread through the population, often without noticeably changing their effect on humans. Occasionally, however, a new variant will emerge which is either more or less dangerous.
Scientists “are now rushing to examine the behaviour of the variant to establish whether it may be more deadly or more infectious than other strains”, the Financial Times reports - although so far they have found no evidence that it presents a greater threat.
And while flu mutates so quickly that immunity to one strain may offer no protection against another, coronavirus appears to be more stable.
“We really don’t think that mutations have any impact on any immunity someone might have from being infected, or on a vaccine,” Hodcroft said.
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Holden Frith is The Week’s digital director. He also makes regular appearances on “The Week Unwrapped”, speaking about subjects as diverse as vaccine development and bionic bomb-sniffing locusts. He joined The Week in 2013, spending five years editing the magazine’s website. Before that, he was deputy digital editor at The Sunday Times. He has also been TheTimes.co.uk’s technology editor and the launch editor of Wired magazine’s UK website. Holden has worked in journalism for nearly two decades, having started his professional career while completing an English literature degree at Cambridge University. He followed that with a master’s degree in journalism from Northwestern University in Chicago. A keen photographer, he also writes travel features whenever he gets the chance.
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