Where did SARS-CoV-2 come from?

email: zhaishaolun@163.com AT the end of 2019, a novel coronavirus (2019-nCoV) was discovered in Wuhan city, Hubei province, central China.1 Due to the close genetic relationship with severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV), it was renamed as SARS-CoV-2 by the International Committee on Taxonomy of Viruses. Since the first case report in China, SARS-CoV-2 has, at the time of writing, also been reported in 28 other countries. During the discovery of potential intermediate hosts for SARS-CoV and MERS-CoV, multidisciplinary experts, including doctors, medical scientists, virologists, microbiologists and veterinarians, all played an important role.5, 6 Using a One Health approach, the route of the virus spread and control measures were identified, which was useful in reducing the spread of SARS-CoV and MERS-CoV. SEE PDF.] SARS-CoV-2 is an emerging and zoonotic virus, and has a huge public health impact.7 At present, although SARS-CoV-2 has been found in bats and pangolins and it is likely to have spread to people, there is still much information about the virus that is unknown, including how it moves between animals and people, and whether it has other hosts.