Despite all the achievements in such a short period of time, we must stress that obtaining a drug capable of inhibiting any of the proteases in SARS-CoV-2, or any other pathogenic agent, is a long and complex process that requires the participation of different branches of science.

The history of coronaviruses as human pathogens dates back to the mid-1960s, when they were first isolated from respiratory tract samples extracted from adults with symptoms of the common cold. Currently, seven types of coronavirus are known to infect humans.