搜尋結果
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. The first known case was identified in Wuhan , China, in December 2019. [7] Most scientists believe the SARS-CoV-2 virus entered into human populations through natural zoonosis , similar to the SARS-CoV-1 and MERS-CoV outbreaks, and consistent with other pandemics in human history.
The global COVID-19 pandemic (also known as the coronavirus pandemic ), caused by severe acute respiratory syndrome coronavirus 2 ( SARS-CoV-2 ), began with an outbreak in Wuhan, China, in December 2019. It spread to other areas of Asia, and then worldwide in early 2020.
On 31 December 2019, the outbreak was traced to a novel strain of coronavirus, which was given the interim name 2019-nCoV by the World Health Organization, later renamed SARS-CoV-2 by the International Committee on Taxonomy of Viruses.
Coronavirus disease 2019 ( COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. The first known case was identified in Wuhan, China, in December 2019.
Coronavirus diseases are caused by viruses in the coronavirus subfamily, a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal.
Host OrganismDiseasePathogenYear Of Discovery1920s [14] ( isolated in 1938) [15]Pigs, dogs, cats1946 (isolated in 1965) [16]Human coronavirus 229E ( HCoV‑229E )1930s (isolated in 1965) [19]Mice, ratsMHV-JHM, a strain of murine coronavirus ( ...1949 [22]The 2022 and 2021 tables below contain the cumulative number of monthly deaths from the pandemic of coronavirus disease 2019 reported by each country and territory to the World Health Organization (WHO) and published in the WHO's spreadsheets and
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,
