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IBV was then officially designated the type species as Avian infectious bronchitis virus (but renamed to Avian coronavirus in 2009). [58] The so-called "hepatoencephalitis group of murine viruses" [20] were grouped into a single species named Mouse hepatitis virus, as approved in 1971.
Since the beginning of the COVID-19 pandemic, there have been efforts by scientists, governments, and others to determine the origin of the SARS-CoV-2 virus. Similar to other outbreaks, [ 1 ] [ 2 ] the virus was derived from a bat-borne virus and most likely was transmitted to humans via another animal in nature, or during wildlife bushmeat ...
Since the first cases of a mysterious new respiratory illness were recorded in China in late 2019, scientists have come to know the pathogen named SARS-CoV-2 (along with its Greek-letter variants ...
Natural selection produced the human coronavirus by mutation in humans. The spike protein of SARS-CoV-2 interacts with furin, an enzyme found in human cells. Furin-like sites are present in other viruses such as HIV and Ebola virus, but not in bat or pangolin coronaviruses, suggesting that the specific furin interaction developed only in humans.
The hunt for the origins of COVID-19 has gone dark in China, the victim of political infighting after a series of stalled and thwarted attempts to find the source of the virus that killed millions ...
In February 2021, after conducting part of their study, the WHO stated that the likely origin of COVID-19 was a zoonotic event from a virus circulating in bats, likely through another animal carrier, and that the time of transmission to humans was likely towards the end of 2019. [19]
Coronaviruses: These respiratory viruses are responsible for the COVID-19 pandemic as well as other diseases including MERS, which was first reported in 2012, and SARS, which caused a global ...
The most similar known viruses to SARS-CoV-2 include bat coronaviruses RpYN06 with 94.5% identity, [15] and RmYN02 with 93% identity [18] RaTG13 was not the direct progenitor of SARS-CoV-2. [19] Temmam et al. found no serological evidence for exposure to BANAL-52 among bat handlers and guano collectors in the area of Laos where it was sampled. [20]