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Feb 6, 2023 · New variants of SARS-CoV-2, the virus that causes COVID-19, will continue to occur. CDC coordinates collaborative partnerships which continue to fuel the largest viral genomic sequencing effort to date. The Omicron variant, which emerged in November 2021, has many lineages.
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COVID-19 is caused by infection with a coronavirus named...
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Everyone 6 months and older should get an updated COVID-19...
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Variant: A variant is a viral genome (genetic code) that may...
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What is CDC doing to track SARS-COV-2 variants? In the...
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Learn about genomic surveillance of SARS-CoV-2, which causes...
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There is also no current evidence that people can get...
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Nov 4, 2023 · Omicron. 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.
3 days ago · When these changes become significantly different to a previously detected virus, these new virus types are known as “variants.” To identify variants, scientists map the genetic material of viruses (known as sequencing) and then look for differences between them to see if they have changed.
Sep 1, 2023 · The World Health Organization (WHO) names new coronavirus variants using the letters of the Greek alphabet, starting with the Alpha variant, which emerged in 2020. Below is a list of—and information about—some of the variants that have been top-of-mind.
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Nov 26, 2021 · The B.1.1.529 variant was first reported to WHO from South Africa on 24 November 2021. The epidemiological situation in South Africa has been characterized by three distinct peaks in reported cases, the latest of which was predominantly the Delta variant.
Dec 27, 2023 · On Dec. 18, the World Health Organization named it as the latest “variant of interest,” meaning it has genetic changes that give it an advantage and that its prevalence is growing globally. The...
Nov 28, 2021 · On 26 November 2021, WHO designated the variant B.1.1.529 a variant of concern, named Omicron, on the advice of WHO’s Technical Advisory Group on Virus Evolution (TAG-VE).
