摘要：In recent years, the emergence or re-emergence of many epidemiological events has taken place in the world, which appear in a population for the first time or which existed and in a certain period show an increase in their incidence and geographical distribution. Mammalian coronaviruses, including those that infect humans, evolve from bat coronaviruses. Although SARS-CoV and MERS-CoV are genetically closely related to bat coronaviruses, intermediate hosts are likely involved in the occurrence and inter-species transmission of these new human viruses. More research is needed to elucidate the ecology of coronaviruses. Vigilance must be maintained to rapidly identify newly emerging coronaviruses. The objective of this research is to inform the main aspects of emerging zoonosis and the jump of the species barrier in the COVID-19 pandemic.
