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Another proposed introduction to humans is through fresh or frozen food products, referred to as the cold food chain. [32] Scientists do not consider this to be a likely origin of SARS-CoV-2 in humans. [33] This scenario's source animal could be either a direct or intermediary species as described above.
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]
Prior to the emergence of SARS-CoV-2 as a pathogen infecting humans, there had been two previous zoonosis-based coronavirus epidemics, those caused by SARS-CoV-1 and MERS-CoV. [ 18 ] The first known infections from SARS‑CoV‑2 were discovered in Wuhan, China. [ 80 ]
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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.
Zambia reported its first 2 cases of COVID-19 on 18 March. The patients were a couple that had travelled to France on holiday. [201] A third case was recorded on 22 March. The patient was a man who had travelled to Pakistan. [202] On 25 March, President Edgar Lungu confirmed a total of 12 cases.
The Africa Centres for Disease Control and Prevention, World Health Organization and COVID-19 Africa Open Data Project [271] have collected and reported continent-wide data on the number of cases, recoveries and deaths. The COVID-19 Africa Open Data Project provides additional data on healthcare workers infected, health services, urgent needs ...
It is not believed that wildlife plays a significant role in the ongoing circulation of SARS-CoV-2 among humans. [66] Mink in a Polish farm c. 2013. SARS-CoV-2 variants adapted to mink were found co-circulating among humans and farmed mink. [2] Mink are the only animal in Europe or North America to experience widespread SARS-CoV-2 outbreaks.