搜尋結果
Coronaviridae is a family of enveloped, positive-strand RNA viruses which infect amphibians, birds, and mammals. The group includes the subfamilies Letovirinae and Orthocoronavirinae; the members of the latter are known as coronaviruses . The viral genome is 26–32 kilobases in length.
Coronaviruses form the subfamily Orthocoronavirinae, which is one of two subfamilies in the family Coronaviridae, order Nidovirales, and realm Riboviria. They are divided into the four genera: Alphacoronavirus, Betacoronavirus, Gammacoronavirus and .
Severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2)[2] is a strain of coronavirus that causes COVID-19, the respiratory illness responsible for the COVID-19 pandemic.[3] The virus previously had the provisional name 2019 novel coronavirus (2019-nCoV),[4][5][6][7] and has also been called human coronavirus 2019 (HCoV-19 or hCoV-19 ...
Severe acute respiratory syndrome coronavirus 1 ( SARS-CoV-1 ), previously known as severe acute respiratory syndrome coronavirus ( SARS-CoV ), [2] is a strain of coronavirus that causes severe acute respiratory syndrome ( SARS ), the respiratory illness responsible for the 2002–2004 SARS outbreak. [3] .
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]As of 2022, there are 52 species of coronaviruses in the subfamily Orthocoronavirinae under the family Coronaviridae, of which seven are of humans while 45 are those of other animals such as pigs, dogs, cats, rodents, cows, horses, camels, Beluga whales
Alphacoronaviruses are in the subfamily Orthocoronavirinae of the family Coronaviridae. Both the Alpha - and Betacoronavirus lineages descend from the bat viral gene pool. [1] [2] Alphacoronaviruses were previously known as " phylogroup 1 coronaviruses". The Alphacoronavirus genus is very diverse, particularly in bats.
