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The Delta variant (B.1.617.2) was a variant of SARS-CoV-2, the virus that causes COVID-19. It was first detected in India on 5 October 2020. It was first detected in India on 5 October 2020. The Delta variant was named on 31 May 2021 and had spread to over 179 countries by 22 November 2021.
Variants of severe acute respiratory syndrome coronavirus 2 ( SARS-CoV-2) are viruses that, while similar to the original, have genetic changes that are of enough significance to lead virologists to label them separately. SARS-CoV-2 is the virus that causes coronavirus disease 2019 (COVID-19).
The CDC publishes official numbers of COVID-19 cases in the United States. The CDC estimates that, between February 2020 and September 2021, only 1 in 1.3 COVID-19 deaths were attributed to COVID-19. [2] The true COVID-19 death toll in the United States would therefore be higher than official reports, as modeled by a paper published in The ...
The continued spread of the SARS-CoV-2 virus has spawned a Greek alphabet of variants - a naming system used by the World Health Organization to track concerning new mutations of the virus that ...
Lineage B.1.617 is a lineage of SARS-CoV-2, the virus that causes COVID-19. [1] It first came to international attention in late March 2021 after the newly established INSACOG performed genome sequencing on positive samples throughout various Indian states. Analysis of samples from Maharashtra had revealed that compared to December 2020, there ...
Coronavirus lineage B.1.1.28 has originated four known lineages classified as variant of interest (VOI) or variant of concern (VOC): lineages P.1, P.2, P.3 and P.4. Lineage P.2 (B.1.1.28.2, Zeta variant), first detected in October 2020 in the state of Rio de Janeiro , Brazil, only shares one mutation of concern with P.1, which is the E484K. [26]
An estimate, made on July 24 using an existing UIUC model of COVID-19 dynamics in Illinois, projected forward to mid-August to estimate of the percentage of infected people within the state of Illinois in mid-August: 0.44%. Based on this, the detection of roughly 200 positive infections was anticipated during entrance screening, with 95% ...
Zeta variant, also known as lineage P.2, [a] is a variant of SARS-CoV-2, the virus that causes COVID-19. It was first detected in the state of Rio de Janeiro; it harbors the E484K mutation, but not the N501Y and K417T mutations. It evolved independently in Rio de Janeiro without being directly related to the Gamma variant from Manaus.