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One form of the mnemonic is done by counting on the knuckles of one's hand to remember the number of days in each month. [1] Knuckles are counted as 31 days, depressions between knuckles as 30 (or 28/29) days. One starts with the little finger knuckle as January, and one finger or depression at a time is counted towards the index finger knuckle ...
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 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]
A COVID-19 vaccine is intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 . Prior to the COVID-19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute ...
With a severe case of COVID-19, a person may experience weakness, lethargy, and fever for a prolonged period of time. However, in some cases, a person might not even show symptoms of having the ...
On January 20, Chinese authorities announced the confirmation that human-to-human transmission of the coronavirus had already occurred. [19] [20]The first recorded U.S. case of the new virus was also reported on January 20, in a 35-year-old American citizen traveling from Wuhan, China, to his home in Washington state.
As of 3 February 2025, 115 countries and territories have at least 200,000 confirmed COVID-19 cases, and of them, 90 (18 out of 23 or nearly 78.3%) have at least half a million confirmed COVID-19 cases, incl. Egypt and Hungary. On 11 March 2022, the second anniversary of the day when the COVID-19 outbreak became a pandemic was commemorated.
In a confidential government teleconference on 15 January, between Ma Xiaowei, the head of the National Health Commission and the provincial health authorities, the government internally acknowledged the threat of a pandemic due to the reporting of the Thailand viral infection a day earlier and the public health threat that New Year holiday ...
This article documents the chronology and epidemiology of SARS-CoV-2 in April 2020, the virus which causes the coronavirus disease 2019 and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 were identified in Wuhan, China, in December 2019.