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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. The World Health Organization (WHO) indicated in June 2021 that the Delta variant was ...
[23] [24] Other organisations such as the CDC in the United States typically define their variants of concern slightly differently; for example, the CDC de-escalated the Delta variant on 14 April 2022, [25] while the WHO did so on 7 June 2022. False-colour transmission electron micrograph of a B.1.1.7 variant coronavirus. The variant's ...
Delta. 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 ...
January 22. On January 22, the U.S. passed 25 million cases, with one of every 13 Americans testing positive for COVID-19. [24] January 24. On January 24, the Capitol Police announced that 38 police officers have tested positive for COVID-19 since the January 6 riot at the United States Capitol. [25] January 25.
According to the CDC, “the United States is once again seeing a rise in COVID-19 cases, hospitalizations, and deaths.”CDC data shows that as of July 22, 35% of counties across the country are ...
The Delta variant, which previously ravaged India and the U.K., now accounts for an estimated 83% of new U.S. coronavirus cases in recent weeks. Furthermore, according to the CDC, those who are ...
From March 1, 2020, through the end of 2020, there were 522,368 excess deaths in the United States, or 22.9% more deaths than would have been expected in that time period. [5] In February 2020, at the beginning of the pandemic, a shortage of tests made it impossible to confirm all possible COVID-19 cases [6] and resulting deaths, so the early ...
After weeks of discouraging news about COVID-19, a rare glimmer of hope seems to have punctured the gloom: America’s summer wave, which has torn through undervaccinated communities across the ...