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Statement on the update of WHO’s working definitions and tracking system for SARS-CoV-2 variants of concern and variants of interest

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  • Statement on the update of WHO’s working definitions and tracking system for SARS-CoV-2 variants of concern and variants of interest

    16 March 2023

    WHO has updated its tracking system and working definitions for variants of SARS-CoV-2, the virus that causes COVID-19, to better correspond to the current global variant landscape, to independently evaluate Omicron sublineages in circulation, and classify new variants more clearly when required.

    SARS-CoV-2 continues to evolve. Since the beginning of the COVID-19 pandemic, multiple variants of concern (VOCs) and variants of interest (VOIs) have been designated by WHO based on their assessed potential for expansion and replacement of prior variants, for causing new waves with increased circulation, and for the need for adjustments to public health actions. ...

    https://www.who.int/news/item/16-03-...ts-of-interest
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