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The Delta variant (B.1.617.2) was [3] [4] a variant of SARS-CoV-2, the virus that causes COVID-19. 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.
COVID-19 variant Delta was less contagious than Omicron and is not currently circulating, explains Dr. Kasson. Though Delta caused about twice as many infections as its predecessors, according to ...
For the Netherlands, based on overall excess mortality, an estimated 20,000 people died from COVID-19 in 2020, [10] while only the death of 11,525 identified COVID-19 cases was registered. [9] The official count of COVID-19 deaths as of December 2021 is slightly more than 5.4 million, according to World Health Organization's report in May 2022 ...
The variant, called "Delta with K417N" by Public Health England, includes two clades corresponding to the Pango lineages AY.1 and AY.2. [150] It has been nicknamed "Delta plus" [151] from "Delta plus K417N". [152] The name of the mutation, K417N, refers to an exchange whereby lysine (K) is replaced by asparagine (N) at position 417. [153]
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 ...
The United States will not lift any existing travel restrictions "at this point" due to concerns over the highly transmissible COVID-19 Delta variant and the rising number of U.S. coronavirus ...
The measures were brought into legal effect by the Minister for Health with the COVID-19 (Temporary Measures) (Control Order) Regulations 2020, published on 7 April 2020. [299] Singapore had relatively few COVID-19 cases before the emergence of the Delta and Omicron variants from 8 May 2021 to 29 March 2022. [300]
India said on Wednesday it has found around 40 cases of the Delta coronavirus variant carrying a mutation that appears to make it more transmissible, and advised states to increase testing.