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Fast-evolving COVID variants complicate vaccine updates

COVID-19 vaccines are due for an upgrade, scientists say, but emerging variants and fickle immune reactions mean it’s not clear what new jabs should look like.
  1. Ewen Callaway
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As countries brace for another Omicron wave driven by the variants BA.4 and BA.5, calls to update COVID-19 vaccines are growing louder.

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Nature 607, 18-19 (2022)

doi: https://doi.org/10.1038/d41586-022-01771-3

References

  1. Chalkia, S. et al. Preprint at medRxiv https://doi.org/10.1101/2022.06.24.22276703 (2022).

  2. Launay, O. et al. Preprint at medRxiv https://doi.org/10.1101/2022.05.25.22274904 (2022).

  3. Reynolds, C. J. et al. Science https://doi.org/10.1126/science.abq1841 (2022).

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