Why scientists call PJ.2.1 a ‘jump’ variant: The COVID strain that arrived with dozens of mutations at once and spreads by gripping your cells more tightly

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A new variant of SARS-CoV-2, named PJ.2.1, was detected in Canada and has spread globally. It has over 25 mutations in its spike protein, which enhance its binding to human cells. Researchers are observing its spread in countries like the US, Spain, and Australia among others. Currently, there is no…