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The Eta variant or lineage B.1.525, also called VUI-21FEB-03 [30] (previously VUI-202102/03) by Public Health England (PHE) and formerly known as UK1188, [30] 21D [75] or 20A/S:484K, [97] does not carry the same N501Y mutation found in Alpha, Beta and Gamma, but carries the same E484K-mutation as found in the Gamma, Zeta, and Beta variants, and ...
The Beta variant, [1] [2] (B.1.351), [a] was [5] [6] a variant of SARS-CoV-2, the virus that causes COVID-19. One of several SARS-CoV-2 variants initially believed to be of particular importance , it was first detected in the Nelson Mandela Bay [ 7 ] metropolitan area of the Eastern Cape province of South Africa in October 2020, [ 8 ] which was ...
SARS-CoV-2 is the seventh known coronavirus to infect people, after 229E, NL63, OC43, HKU1, MERS-CoV, and the original SARS-CoV. [105] Like the SARS-related coronavirus implicated in the 2003 SARS outbreak, SARS‑CoV‑2 is a member of the subgenus Sarbecovirus (beta-CoV lineage B). [106] [107] Coronaviruses undergo frequent recombination. [108]
The betacoronaviruses of the greatest clinical importance concerning humans are OC43 and HKU1 (which can cause the common cold) of lineage A, SARS-CoV-1 and SARS-CoV-2 (the causes of SARS and COVID-19 respectively) of lineage B, [2] and MERS-CoV (the cause of MERS) of lineage C. MERS-CoV is the first betacoronavirus belonging to lineage C that ...
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]
In week 8, the variant was found to have a dominant share of 56.4% (758/1345) according to the interpretable results of a weekly genome sequencing survey comprising 0.9% of all COVID-19 positive tests, or 59.5% according to a variant-specific RT-PCR survey testing 54% of all the COVID-19 positive tests. [124]
The name alphacoronavirus is derived from Ancient Greek ἄλφα (álpha, "the first letter of the Greek alphabet"), and κορώνη (korṓnē, "garland, wreath"), meaning crown, which describes the appearance of the surface projections seen under electron microscopy that resemble a solar corona.
The United Kingdom lifted most COVID-19 restrictions on 19 July, despite a surge in cases as the Delta variant became dominant. The government cited the protection and wide coverage of the COVID-19 vaccination programme , although health experts expressed concern at the move.