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  2. Overview. Nomenclature. Toggle Nomenclature subsection. Lineages and clades. Classification of variants. Reference sequence. Notability criteria. Variants of concern (WHO) Toggle Variants of concern (WHO) subsection. Omicron. BA. sublineages. Further sublineages emerging in 2022.

  3. May 3, 2024 · Tracking SARS-CoV-2-variants. Working definitions and primary actions. Currently circulating COVID-19 Variants of Interest (VOIs) as of 18 December 2023. Currently circulating COVID-19 Variants under Monitoring (VUMs) as of 10 February 2024.

  4. Nov 4, 2023 · The main variant in the United States is omicron. This variant spreads more easily than the original virus that causes COVID-19 and the delta variant. But omicron seems to cause less severe disease. Omicron has a few major offshoots, also called sublineages. Together the omicron variants make up nearly all COVID-19 infections in the United States.

  5. Nov 20, 2023 · Last updated on 20 November 2023. 1. What are variants of SARS-COV-2, the virus that causes COVID-19? 2. What is the difference between variants under monitoring, variants of interest, and variants of concern? 3. What can I do to protect myself from SARS-CoV-2 variants? 4. How can we stop new variants from emerging?

  6. Apr 14, 2024 · From May 2021 onwards, WHO began assigning simple, easy-to-say labels for key variants. Considerable progress has been made in establishing and strengthening a global system to detect signals of potential VOIs or VOCs and rapidly assess the risk posed by SARS-CoV-2 variants to public health.

  7. Apr 26, 2023 · Variants of the Virus. About Genomic Surveillance. Data & Sequencing. Variant Proportions in the US. Global Variant Data. Sequencing for SARS-CoV-2 (SPHERES) Published COVID-19 Sequences. About Variants. Many viruses are constantly changing, including the virus that causes COVID-19.

  8. 03 / 10 / 2023. Show More. The Search For Covid-19 Variants. Sequencing the genome of SARS-CoV-2 allows scientists to identify emerging variants. Vaccine Variants. Dr. Jennifer Nuzzo, senior scholar at the Center for Health Security.

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