Covid-19 pandemic chronology

Article

October 19, 2021

This article documents the chronology and epidemiology of infection with severe acute respiratory syndrome 2 (SARS-CoV-2), the virus responsible for the 2019–2020 coronavirus disease pandemic that originated in Wuhan, China. This article may not cover all key responses and actions. Some new disease developments can be detected or fully understood by the method of retrospect.

November 2019

17 November 2019: The first confirmed case allegedly appeared on 17 November 2019 but cases were still unknown at the time. The search for the first patient is still ongoing.

December 2019

December 30, 2019: "Urgent notice on the treatment of pneumonia of unknown cause" issued by the Medical Administration of the Wuhan Municipal Health Committee December 31, 2019: 27 people with pneumonia of unknown cause were reported to WHO. Most are stall owners from the Wuhan South China Seafood Market. Seven residents are in serious and life-threatening condition. As a result, Hong Kong, Macau and Taiwan have tightened the entry check process into their regions.

January 2020

January 1, 2020: Fish and animal markets suspected of being linked to pneumonia cases are closed for cleaning and disinfection. January 3, 2020: Thailand begins screening passengers arriving from Wuhan at four different airports. On the same day, Singapore began checking passenger temperatures at Changi Airport. 5 January 2020: Initial investigation of the cause of pneumonia ruled out seasonal flu, SARS, MERS and avian flu. The number of suspected cases reported reached 59 people with seven in critical condition. All patients were quarantined and 163 people who came into contact with them were monitored. At this time, there are no reported cases of human-to-human transmission or presentation to health care workers. January 6, 2020: The US Centers for Disease Control and Prevention (CDC) issues a travel watch at level 1, with recommendations for hand washing and advice on avoiding animals, animal markets, and contact with unwell people if traveling to Wuhan. 9 January 2020: WHO confirms that a new coronavirus has been isolated from one hospitalized person. The same day, the European Centers for Disease Control and Prevention posted its first risk assessment. The WHO also reported that Chinese authorities had acted swiftly to identify the new coronavirus in the weeks following the onset of the event, with the number of people testing positive at 41. The first death from the virus occurred in a 61-year-old man who was a regular customer at the market. He had a number of significant medical conditions, including chronic liver disease and he died of heart failure and pneumonia. This incident was reported in China by the National Health Commission via Chinese state media on January 11. 10 January 2020: Gene sequencing data from the isolated Wuhan coronavirus, a virus from the same family as the SARS coronavirus, posted on Virological.org by researchers from the University Fudan, Shanghai. Three from the Chinese Centers for Disease Control and Prevention, one from the Chinese Academy of Medical Sciences, and one from Jinyintan Hospital in Wuhan were posted to the Global Initiative on Sharing All Influenza Data (GISAID) website. On the same day, Public Health England issued its guidance. 11 January 2020: In China, more than 700 close contacts of 41 confirmed cases, including more than 400 health workers, have been monitored, with no new cases reported in China since 5 January . WHO issues preliminary guidance on travel advice, laboratory testing and medical investigations. 13 January 2020: The CDC announces that the genome has been registered with the National Institutes of Health's genetic sequence database, GenBank.

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