virus mutation worries scientists –

A new version of the Sars-Cov-2 coronavirus was identified this summer in Scotland. It worries researchers because it could limit the effectiveness of a future vaccine …

The mutations of the Sars-Cov-2 coronavirus are worrying scientists around the world: at the beginning of November 2020, Denmark also announced that it had slaughtered several thousand mink because some of these small rodents carried a mutation of the virus potentially transmissible to humans …

This time, it is another mutation of the virus at the origin of Covid-19 which makes the news: discovered this summer in Scotland, this “new version” of the coronavirus (called N439K) has also been spotted in other European countries as well as the United States.

Why is the N439K mutation worrying? As explained in an article published in Le Figaro this Saturday, November 28, 2020, this mutation of the Sars-Cov-2 coronavirus particularly affects the Spike protein: it is this which allows the virus to enter human cells, and it is also from it that work the various vaccines against Covid-19 currently under development.

Could the N439K mutation compromise the efficacy of future vaccines against the Sars-Cov-2 coronavirus before they are even marketed? “This is a possibility that unfortunately cannot be ruled out,” said Pascal Meylan, infectious disease specialist and professor at the University of Lausanne (Switzerland) to our colleagues from Le Figaro. But there are several reasons why N439K, along with the other mutations, can be controlled. “

For now, however, there is nothing to panic about. Because, according to a study published in the scientific journal Nature Communications, out of the 12,000 mutations of the Sars-Cov-2 coronavirus currently listed, none facilitates its transmission to humans …

Source: Le Figaro, November 28-29, 2020.

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