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  1. COVID-19. Variants of the Virus. Updated Feb. 6, 2023. Print. What You Need to Know. 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.

  2. May 16, 2022 · The disease is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Development of vaccines against SARS-CoV-2 provide a major step forward in reducing...

  3. Mar 15, 2024 · COVID-19 vaccines are safe, effective, and free. Everyone 6 months and older can get an updated COVID-19 vaccine. Learn more. Highlights. How to Protect Yourself and Others. People with Certain Medical Conditions. Ventilation in Buildings. Symptoms of COVID-19.

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