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The history of coronavirusesis an account of the discovery of the diseases caused by coronavirusesand the diseases they cause. It starts with the first report of a new type of upper-respiratory tract diseaseamong chickens in North Dakota, U.S., in 1931. The causative agent was identified as a virus in 1933.
Learn about the novel coronavirus that causes COVID-19, its origin, structure, variants, and vaccines on Wikipedia.
The timeline of the COVID-19 pandemic lists the articles containing the chronology and epidemiology of SARS-CoV-2, [1] the virus that causes the coronavirus disease 2019 (COVID-19) and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2]
This brought the total confirmed U.S. deaths due to coronavirus to 22: 19 in Washington, 1 in California, and 2 in Florida. Hawaii: Second case is reported by Governor David Ige and State health officials is an elderly man who tested positive after returning from travel to Washington state earlier in the month.
The spikes are the most distinguishing feature of coronaviruses and are responsible for the corona- or halo-like surface. On average a coronavirus particle has 74 surface spikes. [53] Each spike is about 20 nm long and is composed of a trimer of the S protein. The S protein is in turn composed of an S1 and S2 subunit.
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The Wikimedia Foundation reported that on all Wikipedias from 1 December 2019 to 8 December 2020, 6,950 articles related to COVID-19 had been created, and 983,395 edits had been made to COVID-19-related articles by 97,088 editors. Additionally, in the same one-year time frame, COVID-19 related articles across all Wikipedias received 579,190,316 ...
This is a general overview and status of places affected by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2), the virus which causes coronavirus disease 2019 (COVID-19) and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 were identified in Wuhan, the capital of the province of Hubeiin Chinain December 2019.