: the coronavirus (Severe acute respiratory syndrome coronavirus 2 of the genus Betacoronavirus) that is the causative agent of COVID-19

Examples of SARS-CoV-2 in a Sentence

Recent Examples on the Web
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The study also speculated potential future Alzheimer’s problems may arise from the COVID-19 pandemic as SARS-CoV-2 infections have been known to reactivate dormant VSV and HSV-1 infections. Rich Haridy, New Atlas, 25 Feb. 2025 Some of the people with PVS also had higher levels of the SARS-CoV-2 spike protein, which enables the virus to penetrate and infect host cells. Melissa Rudy, Fox News, 24 Feb. 2025 What actually happened was that SARS-CoV-2 began mutating quickly, first to be more transmissible and then to evade our immunity, causing breakthrough infections and reinfections. Sarah Zhang, The Atlantic, 24 Feb. 2025 An estimated 1 percent to 3 percent of children infected with SARS-CoV-2 will develop long COVID, defined as having symptoms that continue or develop four or more weeks after the initial phase of infection. Ars Technica, 24 Feb. 2025 The SARS-CoV-2 genetic sequence does not show obvious signs of laboratory manipulation. Chicago Tribune, 8 Feb. 2025 The virus that causes COVID, SARS-CoV-2, hasn’t mutated much recently, says Katelyn Jetelina, an epidemiologist who writes the popular newsletter Your Local Epidemiologist and consults for the CDC. Tanya Lewis, Scientific American, 4 Feb. 2025 That’s according to a study published in the Journal of General Internal Medicine earlier this month, which found that 4.5% of people infected with SARS-CoV-2, the virus that causes COVID, developed chronic fatigue. Melissa Rudy, Fox News, 26 Jan. 2025 Share [Findings] Convalescent plasma helps Syrian hamsters fight SARS-CoV-2. Rafil Kroll-Zaidi, Harper's Magazine, 22 Jan. 2025

Word History

First Known Use

2020, in the meaning defined above

Time Traveler
The first known use of SARS-CoV-2 was in 2020

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Cite this Entry

“SARS-CoV-2.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/SARS-CoV-2. Accessed 10 Mar. 2025.

Medical Definition

SARS-CoV-2

noun
: the coronavirus (Severe acute respiratory syndrome coronavirus 2 of the genus Betacoronavirus) that is the causative agent of COVID-19 see delta variant, omicron variant
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