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related to: how long does the omicron virus last
Understanding Omicron Variant - Read CDC Facts & Information

www.cdc.gov
Bivalent boosters and updated COVID vaccines are the same thing. CDC recommends them. COVID vaccine effectiveness wanes over time. An updated COVID vaccine restores protection.
Official CDC Information · Omicron Variant Updates · COVID Variant CDC Info.
COVID-19 Variant Data
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COVID Variant Information
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Read CDC facts and information.

Updated Bivalent Boosters
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vaccines. See CDC recommendations.

Vaccination Maintenance
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COVID Variant Monitoring
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COVID-19 Vaccine - From Pfizer & BioNTech

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See Emergency Use Authorization For Pfizer-BioNTech COVID-19 Vaccine Bivalent. Explore Frequently Asked Questions About The Vaccine.

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related to: how long does the omicron virus last
Understanding Omicron Variant - Read CDC Facts & Information

www.cdc.gov
Bivalent boosters and updated COVID vaccines are the same thing. CDC recommends them. COVID vaccine effectiveness wanes over time. An updated COVID vaccine restores protection.
Official CDC Information · Omicron Variant Updates · COVID Variant CDC Info.
COVID-19 Variant Data
Read global variant reports and

view data on variants of interest

COVID Variant Information
Learn about the COVID-19 variants.

Read CDC facts and information.

Updated Bivalent Boosters
Learn about the updated bivalent

vaccines. See CDC recommendations.

Vaccination Maintenance
Learn how to stay up to date with

COVID vaccines and boosters.

COVID Variant Monitoring
See how the CDC is monitoring the

COVID-19 variants & how they occur.

Vaccine Effectiveness
The vaccines are effective. Learn

how experts evaluated the vaccines.
COVID-19 Vaccine - From Pfizer & BioNTech

www.comirnaty.com
See Emergency Use Authorization For Pfizer-BioNTech COVID-19 Vaccine Bivalent. Explore Frequently Asked Questions About The Vaccine.

SARS-CoV-2 Omicron variant
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COVID-19
CDC: Omicron variant
The Omicron variant is a variant of SARS-CoV-2, the virus that causes COVID-19. It was first reported to the World Health Organization (WHO) from South Africa on 24 November 2021. On 26 November 2021, the WHO designated it as a variant of concern and named it "Omicron", the fifteenth letter in the Greek alphabet. wikipedia.org
- First reported case: On 24 November 2021, the variant was first reported to the WHO from South Africa, based on samples that had been collected from 14 to 16 November.
- Does Omicron spread more easily?: The Omicron variant likely will spread more easily than the original SARS-CoV-2 virus and how easily Omicron spreads compared to Delta remains unknown. CDC expects that anyone with Omicron infection can spread the virus to others, even if they are vaccinated or don’t have symptoms.
- Does Omicron cause more severe illness?: More data are needed to know if Omicron infections, and especially reinfections and breakthrough infections in people who are fully vaccinated, cause more severe illness or death than infection with other variants.
- How effective are current vaccines against Omicron?: Current vaccines are expected to protect against severe illness, hospitalizations, and deaths due to infection with the Omicron variant. However, breakthrough infections in people who are fully vaccinated are likely to occur.
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