COVID-19 is attributable to a coronavirus known as SARS-CoV-2. Coronaviruses are a big household of viruses which are widespread in individuals and should totally different species of animals, together with camels, cattle, cats, and bats. Hardly ever, animal coronaviruses can infect individuals after which unfold between individuals. This occurred with MERS-CoV and SARS-CoV, and now with the virus that causes COVID-19. The SARS-CoV-2 virus is a betacoronavirus, like MERS-CoV and SARS-CoV. All three of those viruses have their origins in bats. The sequences from U.S. sufferers are just like the one which China initially posted, suggesting a possible single, current emergence of this virus from an animal reservoir. Nonetheless, the precise supply of this virus is unknown.
Extra details about the supply and unfold of COVID-19 is on the market on the State of affairs Abstract: Supply and Unfold of the Virus.