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Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). [1] The disease was first identified in 2019 in Wuhan, Central China, and has since spread globally, resulting in a pandemic and affecting over 100 countries of the world.
A term for COVID-19 used by former United States president Donald Trump to emphasize that the pandemic started in China. Comirnaty. Main article: Comirnaty. The commercial name for the FDA approved COVID-19 vaccine from Pfizer, released August 21, 2021. It also has several other names or designators used on the actual vials. Community transmission
On 21 October, the United States surpassed 99 million cases of COVID-19, the most cases of any country. [246] By 30 October, the worldwide daily death toll was 424, the lowest since 385 deaths were reported on 12 March 2020. [247] 17 November marked the three-year anniversary since health officials in China first detected COVID-19. [248]
While COVID-19 refers to the disease and SARS-CoV-2 refers to the virus which causes it, referring to the "COVID-19 virus" has been accepted. [9] [25] [29] Reference to SARS-CoV-2 as "the coronavirus" has become somewhat accepted despite such use implying that there is only one coronavirus species. Similarly, use of "COVID" for the disease (if ...
One way to estimate COVID-19 deaths that includes unconfirmed cases is to use the excess mortality, which is the overall number of deaths that exceed what would normally be expected. [4] 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 ...
The most recent COVID-19 vaccine should offer protection against the XEC variant, Russo says. “The most recent version of the vaccine seems to be reasonably well-matched,” he says.
The human coronavirus NL63 shared a common ancestor with a bat coronavirus (ARCoV.2) between 1190 and 1449 CE. [76] The human coronavirus 229E shared a common ancestor with a bat coronavirus (GhanaGrp1 Bt CoV) between 1686 and 1800 CE. [77] More recently, alpaca coronavirus and human coronavirus 229E diverged sometime before 1960. [78]
The first section contains summary information: the total number of countries and territories with at least 100, 1,000, 10,000, 100,000, a million and ten million cases; the number of cases reported to WHO; the countries and territories that have reported no cases yet to WHO; and two charts showing the 20 countries and territories with the ...