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Had Omicron? You're unlikely to catch its rising variant

Infection with the first widely circulating version of Omicron protects against the emerging BA.2 subvariant — as does vaccination.
  1. Saima May Sidik
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Good news for the pandemic-weary: a study1 shows that previous infection with the widely circulating BA.1 version of the Omicron coronavirus variant provides strong protection against its relative BA.2, which is growing in prevalence. The results suggest that BA.2 is unlikely to cause a major wave of infections in communities that have experienced a BA.1 wave.

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doi: https://doi.org/10.1038/d41586-022-00558-w

References

  1. Stegger, M. et al. Preprint at medRxiv https://doi.org/10.1101/2022.02.19.22271112 (2022).

  2. Yamasoba, D. et al. Preprint at bioRxiv https://doi.org/10.1101/2022.02.14.480335 (2022).

  3. Yu, J. et al. Preprint at medRxiv https://doi.org/10.1101/2022.02.06.22270533 (2022).

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