Illustration of spike (S) proteins (red) from the SARS-CoV-2 virus that have been stabilised for use in a vaccine. Polysorbate (violet), fatty acid (not visible) and N-acetylglucosamine (blue) molecules hold the S protein in its prefusion conformation. This conformation elicits a stronger immune response from the body than the postfusion conformation. SARS-CoV-2 is the cause of the respiratory disease covid-19.

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TPG32487815

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達志影像

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