![A large virus is on the left of the image on a light blue background, it connects out to the left, via orange lines, to other viruses with slight difference in shape.](/sites/default/files/styles/thumbnail/public/2021-02/FINAL_ExplainerThumbnails_Ex13-AnExpertExplainsVariants-1600x900.png?itok=RoRI3D11)
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![A large virus is on the left of the image on a light blue background, it connects out to the left, via orange lines, to other viruses with slight difference in shape.](/sites/default/files/2021-02/FINAL_ExplainerThumbnails_Ex13-AnExpertExplainsVariants-1600x900.png)
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