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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, [98] 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 ...
Delta (B.617.2) First identified in India in late 2020, the delta variant soon spread across the globe. It became the dominant variant of SARS-CoV-2 until the emergence of omicron in December 2021.
In less than two months, the Delta variant would go on to become the dominant variant in the UK with researchers stating early evidence suggested there may be an increased risk of hospitalization for Delta compared to the previously dominant Alpha variant. [16]
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 ...
While the alpha and beta genera are derived from the bat viral gene pool, the gamma and delta genera are derived from the avian and pig viral gene pools. [1] Recombination appears to be common among deltacoronaviruses. [2] Recombination occurs frequently in the viral genome region that encodes the host receptor binding protein.
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.
However, on July 9, Public Health England reported that the Delta variant in England had a case fatality rate (CFR) of 0.2%, while the Alpha variant's case fatality rate was 1.9%, although the report warns that "case fatality rates are not comparable across variants as they have peaked at different points in the pandemic, and so vary in ...
The delta variant now accounts for more than 83 percent of Covid-19 cases, the Centers for Disease Control and Prevention said Tuesday. Just a month ago, the variant accounted for just over 30 ...