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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.
On 26 May 2021, President Joe Biden directed the U.S. intelligence community to produce a report within 90 days on whether the COVID-19 virus originated from human contact with an infected animal or from an accidental lab leak, [79] stating his national security staff said there is insufficient evidence to determine either hypothesis to be more ...
In a 31 January 2020 interview with Science Magazine, Professor Richard Ebright said there was a possibility that SARS-CoV-2 entered humans through a laboratory accident in Wuhan, and that all data on the genome sequence and properties of the virus were "consistent with entry into the human population as either a natural accident or a ...
SARS-CoV-2, the causative agent of COVID-19, was first introduced to humans through zoonosis (transmission of a pathogen to a human from an animal), and a zoonotic spillover event is the origin of SARS-CoV-2 that is considered most plausible by the scientific community.
Dozens of captive animal species have been found infected or proven able to be experimentally infected with SARS-CoV-2, the virus that causes COVID-19. The virus has also been found in over a dozen wild animal species. Most animal species that can get the virus have not been proven to be able to spread it back to humans. The Centers for Disease ...
As COVID-19 infections increased among young people, the CDC released updated guidance on Thursday for who is most at risk for severe infection from the coronavirus, noting that there's not a "cut ...
It’s a hardy virus, and it’s harder to kill than many others. As a result, some of the usual methods of preventing illness won’t work against it. ... RSV, and SARS-CoV-2, the virus that ...
How else to protect yourself from viruses this winter. Respiratory viruses are the biggest reasons people get sick in winter, Dr. Russo says. “You can get infected through fomites [infected ...