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Virus variant from Spain spread across Europe: Study

Virus variant from Spain spread across Europe: Study
Researchers suggest Spain’s popularity as holiday destination may be behind spread of new coronavirus variant

By Alyssa McMurtry

OVIEDO, Spain (AA) - Spain is the likely origin of a new coronavirus variant that has become prevalent in many European countries, according to researchers in Spain and Switzerland.

The variant accounts for nearly 80% of the virus sequenced in Spain, 90% in the UK, 60% in Ireland and 30-40% in Switzerland and the Netherlands, according to a new study published in a pre-print and has yet to be peer-reviewed.

The variant has also been found in France, Belgium, Germany, Italy, Latvia, Norway, and Sweden.

The authors from the University of Basel and the SeqCOVID-Spain consortium said that although there are hundreds of variants of the virus floating around Europe, “very few have spread as successfully and become as prevalent” as this one.

There is no evidence that this variant is more contagious than others, but believe that its extension was fueled by loosening travel restrictions and social distancing measures in the summer, the researchers stressed

Researchers first identified the new variant in an outbreak among agricultural workers in the Spanish regions of Aragon and Catalonia in June, which then moved to the local population and later began to spread across Spain.

These outbreaks were the initial propeller of Spain’s summer outbreaks and occurred right before the borders were opened to travel.

“One variant, aided by an initial super-spreading event, can quickly become prevalent across the country,” Dr. Inaki Comas, a co-author of the study and head of the SeqCOVID-Spain consortium, said in a press release.

From July, the variant began to appear across Europe and even in Hong Kong and New Zealand.

The authors analyzed travel data to Spain this summer and suggest that its popularity as a holiday destination helped fuel the variant’s spread.

Although several European countries began to enforce quarantines on travelers from Spain in late July after local cases spiked, genetic analysis found that the variant traveled “at least dozens and possibly hundreds of times between European countries.”

From there, the variant was able to spread "into larger outbreaks through risky behaviors after returning home,” say researchers.

According to the World Health Organization data, last week saw a record 2.8 million confirmed coronavirus infections across the globe. Around 46% of those infections were detected in Europe.

Countries across the continent have begun to announce curfews, business closures, and even full lockdowns. Yet the authors of this study caution against attributing this variant for the huge rise.

“Indeed, in some countries with significant increases in Covid-19 cases, like Belgium and France, other variants are prevalent.”

The authors instead highlight the importance of evaluating how border controls and travel restrictions can help contain viral spread.

“While long-term travel restrictions and border closures are not tenable or desirable, identifying better ways to reduce the risk of introducing variants, and ensuring that those which are introduced do not go on to spread widely, will help countries maintain often hard-won low levels of SARS-CoV-2 transmission,” the study noted.

source: News Feed
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