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SARS-CoV-2 is the virus that causes coronavirus disease 2019 (COVID-19). Some have been stated, to be of particular importance due to their potential for increased transmissibility, [1] increased virulence, or reduced effectiveness of vaccines against them. [2] [3] These variants contribute to the continuation of the COVID-19 pandemic.
The most recent COVID-19 vaccine should offer protection against the XEC variant, Russo says. “The most recent version of the vaccine seems to be reasonably well-matched,” he says.
The European Centre for Disease Prevention and Control (ECDC) also list a fourth spike mutation of interest: [14] D614G. This is a substitution at position 614, an aspartic acid-to-glycine substitution. [15] Other variants which have the D614G mutation include the Beta and Delta variants, and the mutation is associated with increased ...
False-colour transmission electron micrograph of a B.1.1.7 variant coronavirus. The variant's increased transmissibility is believed to be due to changes in the structure of the spike proteins, shown here in green. There are many thousands of variants of SARS-CoV-2, which can be grouped into the much larger clades. [142]
The COVID-19 pandemic was the third leading cause of death globally in 2020 and the second in 2021, according to a recent World Health Organization report.The almost 13 million lives lost during ...
KP.3.1.1 is still the dominant COVID-19 variant in the United States as it accounts for nearly 60% of positive cases, but the new XEC variant is not far behind, recent Centers for Disease Control ...
The timeline of the COVID-19 pandemic lists the articles containing the chronology and epidemiology of SARS-CoV-2, [1] the virus that causes the coronavirus disease 2019 and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2]
Yes, the wastewater viral activity for COVID-19 — how the CDC tracks trends in infectious disease circulating in a community — is currently listed as “very high,” according to the most ...