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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.
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.
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The CDC is also tracking COVID-19 and respiratory syncytial virus (RSV) activity on a weekly basis. Follow The Flu Trends On weather.com’s Cold and Flu Forecast
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.
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, also known as B.1.617.2, G/452R.V3, 21A [75] or 21A/S:478K, [98] was a globally dominant variant that spread to at least 185 countries. [138] It was first discovered in India . Descendant of lineage B.1.617, which also includes the Kappa variant under investigation, it was first discovered in October 2020 and has since spread ...
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.