Current status of research on host traceability of SARS-CoV-2

Corona virus disease 2019 (COVID-19) is the first global pandemic of coronaviruses in human history. As a community of shared future for mankind, all countries should unite to fight against the pandemic and overcome the difficulties together. At present, the study of tracing the origin of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is still in progress, and current researches suggest that bats and pangolins could be potential natural hosts, while many other kinds of mammals such as non-human primates, cats, ferrets and hamsters may act as potential intermediate hosts, which play a significant role in the emergence and outbreak of the pandemic.