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  2. Nov 15, 2023 · Nov. 15, 2023. Leer en español. Two closely related variants, EG.5 and HV.1, now comprise roughly half of the Covid-19 cases in the United States. EG.5 became the dominant variant nationwide...

  3. Sep 1, 2023 · Variants of SARS-CoV-2, the virus that causes COVID-19, have been reported in many countries around the world. Learn more about the current variants of concern. CDC provides credible COVID-19 health information to the U.S.

  4. Nov 4, 2023 · Scientists across the world track the changes in the virus variants that cause COVID-19. 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 ...

  5. Mar 16, 2023 · In late 2020, the emergence of variants that posed an increased risk to global public health prompted WHO to characterize some as variants of interest (VOIs) and variants of concern (VOCs) in order to prioritize global monitoring and research, and to inform and adjust the COVID-19 response.

  6. Apr 8, 2022 · Alpha, beta, gamma, delta and omicron variants of the SARS-CoV-2 coronavirus are classified as variants of concern. A variant of high consequence is a variant for which current vaccines do not offer protection. As of now, there are no SARS-CoV-2 variants of high consequence.

  7. Aug 31, 2023 · Here’s a look at the most notable strains and variants of the COVID virus throughout the pandemic. B.1.1.7 (Alpha) By the end of 2020, the original L strain of the COVID virus had gone through multiple mutations, including the S, V, and G strains .

  8. Apr 26, 2023 · Variants and Genomic Surveillance for SARS-CoV-2. Updated Apr. 26, 2023. Print. CDC is monitoring current COVID-19 cases. Learn more about variants and their expected impact on hospitalizations. About Variants. Hospitalization Forecast.

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