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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] The first ...
Human-to-human transmission of SARS‑CoV‑2 was confirmed on 20 January 2020 during the COVID-19 pandemic. [ 16 ] [ 39 ] [ 40 ] [ 41 ] Transmission was initially assumed to occur primarily via respiratory droplets from coughs and sneezes within a range of about 1.8 metres (6 ft).
Erythema infectiosum (Fifth disease) 13 days [14] 18 days Giardia: 3 days: 21 days HIV: 2 weeks to months, or longer [15] 3 weeks to months, or longer Infectious mononucleosis (glandular fever) 28 days [16] 42 days Influenza: 1 day [17] 3 days Kuru disease: 10.3 years (mean) [18] 13.2 years Leprosy: 1 year [19] 20 or more years Marburg: 5 days ...
By late November 2019, coronavirus disease 2019 had broken out in Wuhan, China. [2]As reported in Clinical Infectious Diseases on November 30, 2020, 7,389 blood samples collected between December 13, 2019, and January 17, 2020, by the American Red Cross from normal donors in nine states (California, Connecticut, Iowa, Massachusetts, Michigan, Oregon, Rhode Island, Washington and Wisconsin ...
The transmission of COVID-19 is the passing of coronavirus disease 2019 from person to person. COVID-19 is mainly transmitted when people breathe in air contaminated by droplets/aerosols and small airborne particles containing the virus. Infected people exhale those particles as they breathe, talk, cough, sneeze, or sing.
[60] 229E and OC43 were collectively named Human respiratory virus but merged as Human coronavirus 229E (HCoV-229E) in 2009. [61] The first discovered human coronavirus B814 was antigenically different from 229E and OC43, [62] but it could not be propagated in culture and was exhausted during experiments in 1968, [63] thus, was excluded in ...
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]
This article documents the chronology and epidemiology of SARS-CoV-2 in January 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.