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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.
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The Epsilon variant or lineage B.1.429, also known as CAL.20C [159] or CA VUI1, [160] 21C [75] or 20C/S:452R, [98] is defined by five distinct mutations (I4205V and D1183Y in the ORF1ab gene, and S13I, W152C, L452R in the spike protein's S-gene), of which the L452R (previously also detected in other unrelated lineages) was of particular concern.
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.
As free tests are now available, one COVID-19 variant continues to be the most prevalent in the United States. Free COVID tests return as CDC says this one variant now accounts for nearly 60% of cases
The Delta variant is more transmissible than the SARS-CoV-2 ancestral strain as well as the viruses that cause MERS, SARS, Ebola, the common cold, the seasonal flu and smallpox, the report said.
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Delta variant is 'more transmissible and it can break through the vaccine' Though vaccination numbers in the country have improved as of late, the overall rollout has still been impeded by vaccine ...