SARS-CoV-2
noun
: a strain of the coronavirus (Betacoronavirus pandemicum) that is the causative agent of COVID-19 compare sars-cov-1
Examples of SARS-CoV-2 in a Sentence
Recent Examples on the Web
In 2020, during the SARS-CoV-2 pandemic, many people had a deeply emotional, intensely personal, and perhaps somewhat obsessive relationship with a macroscope.
—
Big Think, 27 Oct. 2025
In a new study led by The Florey Institute of Neuroscience and Mental Health (The Florey), researchers have discovered that a SARS-CoV-2 infection in male mice can alter their sperm, leading to changes in an offspring’s brain and behavior.
—New Atlas, 13 Oct. 2025
WastewaterSCAN's dashboard shows high levels of SARS-CoV-2 virus in the wastewater nationally over the last 21 days, including in Michigan.
—Kristen Jordan Shamus, Freep.com, 17 Sep. 2025
Therefore, a reminder, any reminder of the SARS-CoV-2 spike protein at least every year or so, could keep your immune system more attuned.
—Bruce Y. Lee, Forbes.com, 14 Sep. 2025
When the SARS-CoV-2 delta and omicron variants emerged in the spring and fall of 2021, mRNA vaccines became less effective in preventing infections.
—Deborah Fuller, CNN Money, 10 Sep. 2025
The researchers conducted SARS-CoV-2 rapid antigen testing twice a week to diagnose infection.
—Angelica Stabile, FOXNews.com, 4 Sep. 2025
When the SARS-CoV-2 delta and omicron variants emerged in the spring and fall of 2021, mRNA vaccines became less effective in preventing infections.
—Deborah Fuller, The Conversation, 3 Sep. 2025
File photo of an employee of the Bavarian Red Cross (BRK) preparing the BioNTech/Pfizer vaccine against the coronavirus SARS-CoV-2 for vaccination in a vaccination center, taken in Bavaria, Germany, in January 2021.
—Jordan King, MSNBC Newsweek, 19 Aug. 2025
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Big Think, 27 Oct. 2025
In a new study led by The Florey Institute of Neuroscience and Mental Health (The Florey), researchers have discovered that a SARS-CoV-2 infection in male mice can alter their sperm, leading to changes in an offspring’s brain and behavior.
—New Atlas, 13 Oct. 2025
WastewaterSCAN's dashboard shows high levels of SARS-CoV-2 virus in the wastewater nationally over the last 21 days, including in Michigan.
—Kristen Jordan Shamus, Freep.com, 17 Sep. 2025
Therefore, a reminder, any reminder of the SARS-CoV-2 spike protein at least every year or so, could keep your immune system more attuned.
—Bruce Y. Lee, Forbes.com, 14 Sep. 2025
When the SARS-CoV-2 delta and omicron variants emerged in the spring and fall of 2021, mRNA vaccines became less effective in preventing infections.
—Deborah Fuller, CNN Money, 10 Sep. 2025
The researchers conducted SARS-CoV-2 rapid antigen testing twice a week to diagnose infection.
—Angelica Stabile, FOXNews.com, 4 Sep. 2025
When the SARS-CoV-2 delta and omicron variants emerged in the spring and fall of 2021, mRNA vaccines became less effective in preventing infections.
—Deborah Fuller, The Conversation, 3 Sep. 2025
File photo of an employee of the Bavarian Red Cross (BRK) preparing the BioNTech/Pfizer vaccine against the coronavirus SARS-CoV-2 for vaccination in a vaccination center, taken in Bavaria, Germany, in January 2021.
—Jordan King, MSNBC Newsweek, 19 Aug. 2025
Cite this Entry
“SARS-CoV-2.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/SARS-CoV-2. Accessed 13 Nov. 2025.
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SARS-CoV-2
noun
: a strain of the coronavirus (Betacoronavirus pandemicum) that is the causative agent of COVID-19 see delta variant, omicron variant compare sars-cov-1
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