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Human coronaviruses infect the epithelial cells of the respiratory tract, while animal coronaviruses generally infect the epithelial cells of the digestive tract. [42] SARS coronavirus, for example, infects the human epithelial cells of the lungs via an aerosol route [68] by binding to the angiotensin-converting enzyme 2 (ACE2) receptor. [69]
Coronavirus diseases are caused by viruses in the coronavirus subfamily, a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal.
The history of coronaviruses is an account of the discovery of the diseases caused by coronaviruses and the diseases they cause. It starts with the first report of a new type of upper-respiratory tract disease among chickens in North Dakota, U.S., in 1931.
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
The FBI concluded with "moderate confidence" that COVID-19 may have been created in a laboratory, based in part on genomic analysis conducted by scientists at the National Center for Medical Intelligence. [98] On 20 March 2023, the COVID-19 Origin Act of 2023 was signed into law. On June 23, 2023, the Biden administration released its report ...
Four other agencies have expressed “low confidence” in a zoonotic origin, meaning that they believe the coronavirus came from a wildlife market but lack the evidence to make a more definitive ...
February 2020. Feb. 10: Worldwide deaths from the 2019 Novel Coronavirus exceeded 1,000, topping the number killed by the 2002-2003 outbreak of SARS.
The study was commissioned by the Director-General of the World Health Organization following a request by the 2020 World Health Assembly in which 122 WHO members proposed a motion, which included a call for a "comprehensive, independent and impartial" study into the COVID-19 pandemic" [2] [3] The WHO disbanded the team and proposed a new panel ...