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This article documents the chronology and epidemiology of SARS-CoV-2 in 2019, the virus that causes coronavirus disease 2019 and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 known to have been identified were in Wuhan , Hubei , China , in December 2019.
The use of face masks is recommended for anyone suspected of having the virus to prevent the spread of infected droplets. Caregivers should also use masks, faceshields, and other personal protective equipment when caring for people with active COVID-19, and high filtration masks, like the N95, for any activities that may generate aerosol from ...
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 ...
[27] [28] In January 2020, the World Health Organization (WHO) recommended "2019 novel coronavirus" (2019-nCoV) [5] [29] as the provisional name for the virus. This was in accordance with WHO's 2015 guidance [ 30 ] against using geographical locations, animal species, or groups of people in disease and virus names.
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]
Early in the pandemic, he said, research moved quickly, with researchers desperate to better understand the SARS-CoV-2 virus that causes COVID-19, and find effective treatments for very sick people.
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.
A 7 February autopsy [59] was completed in April (after virus tests on tissue samples) and attributed the death to Transmural Myocardial Ischemia (Infarction) with a Minor Component of Myocarditis due to COVID-19 Infection. Her case indicates that community transmission was happening undetected in the US, most likely since December.