Research and analysis

Investigation of SARS-CoV-2 variants of concern: variant risk assessments

Risk assessments for SARS-CoV-2 variants.

Applies to England

Documents

Risk assessment for SARS-CoV-2 variants VOC-22APR-03 (Omicron BA.4) and VOC-22APR-04 (Omicron BA.5)

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Risk assessment for SARS-CoV-2 variants V-22APR-03 (Omicron BA.4) and V-22APR-04 (Omicron BA.5)

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Risk assessment for SARS-CoV-2 variant: VUI-22JAN-01 (BA.2): 23 March

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Risk assessment for SARS-CoV-2 variant: VUI-22JAN-01 (BA.2): 23 February

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Risk assessment for SARS-CoV-2 variant: VUI-22JAN-01 (BA.2): 9 February

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Risk assessment for SARS-CoV-2 variant: VUI-22JAN-01 (BA.2): 26 January 2022

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Risk assessment for SARS-CoV-2 variant Omicron: VOC-21NOV-01 (B.1.1.529): 12 January 2022

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Risk assessment for SARS-CoV-2 variant Omicron: VOC-21NOV-01 (B.1.1.529): 22 December 2021

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Risk assessment for SARS-CoV-2 variant Omicron: VOC-21NOV-01 (B.1.1.529): 15 December 2021

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Risk assessment for SARS-CoV-2 variant Omicron: VOC-21NOV-01 (B.1.1.529): 9 December 2021

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Risk assessment for SARS-CoV-2 variant Omicron: VOC-21NOV-01 (B.1.1.529): 8 December 2021

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Risk assessment for SARS-CoV-2 variant: Omicron VOC-21NOV-01 (B.1.1.529): 3 December 2021

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Risk assessment for SARS-CoV-2 variant: VUI-21OCT-01 AY.4.2: 10 November 2021

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Risk assessment for SARS-CoV-2 variant VUI-21JUL-01 (B.1.621): 6 August 2021

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Risk assessment for SARS-CoV-2 variant Delta: 23 July 2021

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Risk assessment for SARS-CoV-2 variant Beta: 23 July 2021

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Risk assessment for SARS-CoV-2 variant Delta: 8 July 2021

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Risk assessment for SARS-CoV-2 variant Lambda: 8 July 2021

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Risk assessment for SARS-CoV-2 variant Delta: 25 June

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SARS-CoV-2 variants: risk assessment framework

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Risk assessment for SARS-CoV-2 variant Delta: 18 June

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Risk assessment for SARS-CoV-2 variant Delta: 10 June

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Risk assessment for SARS-CoV-2 variant Delta: 3 June

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Risk assessment for SARS-CoV-2 variant VOC-21APR-02 (B.1.617.2): 27 May 2021

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Risk assessment for SARS-CoV-2 variant VOC-21APR-02 (B.1.617.2): 22 May 2021

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Details

Published 13 May 2021
Last updated 24 June 2022 + show all updates
  1. Added 22 June update for VOC-22APR-03 (Omicron BA.4) and VOC-22APR-04 (Omicron BA.5).

  2. Added 28 April risk assessment for SARS-CoV-2 variants V-22APR-03 (Omicron BA.4) and V-22APR-04 (Omicron BA.5).

  3. Added 23 March 2022 risk assessment for SARS-CoV-2 variant VUI-22JAN-01 (BA.2).

  4. Added 23 February assessment for SARS-CoV-2 variant: VUI-22JAN-01 (BA.2).

  5. Added 9 February assessment for SARS-CoV-2 variant: VUI-22JAN-01 (BA.2).

  6. Added risk assessment for SARS-CoV-2 variant: VUI-22JAN-01 (BA.2).

  7. Added 12 January risk assessment for Omicron variant.

  8. Added 22 December risk assessment for Omicron variant.

  9. Added 15 December risk assessment for Omicron variant.

  10. Added 9 December risk assessment for Omicron variant.

  11. Added 8 December risk assessment for Omicron variant.

  12. Added risk assessment for SARS-CoV-2 variant: Omicron VOC-21NOV-01 (B.1.1.529).

  13. Added risk assessment for SARS-CoV-2 variant: VUI-21OCT-01 AY.4.2.

  14. Added risk assessment for SARS-CoV-2 variant VUI-21JUL-01.

  15. Updated risk assessment for Delta and Beta variants.

  16. Updated risk assessment for Delta and added new risk assessment for Lambda.

  17. Updated risk assessment.

  18. Updated risk assessment.

  19. Updated risk assessment.

  20. Updated risk assessment document and changed variant name to 'Delta'.

  21. Updated risk assessment.

  22. Added updated versions of both documents.

  23. First published.