The way the polybasic insert of the spike protein of the virus SARS-CoV-2 sways and backbends to pull it closer to the human cell, like no other known coronavirus  – you would think it was a ballet dancer (see vid)

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The way the polybasic insert of the spike protein of the virus SARS-CoV-2

sways and backbends to pull it closer to the human cell,

like no other known coronavirus  –

— you would think it was a ballet dancer

(video below will pixelate in five seconds)