The coronavirus disease 2019 (COVID-19) is a master killer which appeared suddenly and which has already claimed more than 200,000 human lives. In this situation, laboratories are in urgent need for a COVID-19 murine model to search for effective antiviral compounds. Here we propose a novel strategy for the development of mice that can be inoculated by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the COVID-19 causative agent