Anti-SARS-CoV antibodies: Severe acute respiratory syndrome (SARS), caused by SARS coronavirus (SARS-CoV), is a kind of respiratory viral diseases. It was first reported in 2003. Currently, there is no reported SARS transmission in the world. However, another kind of coronavirus, SARS-CoV-2 caused COVID-19 has become a pandemic since last December, 2019. COVID-19 showed many similarities to the previous SARS outbreak. Now worldwide scientists are dedicated to exploring mechanisms of SARS-CoV-2 and developing novel therapies to control this pandemic.