Before revision:  We applied our model to analyze the impact of SARS-CoV-2 infection on the RASsystem , which we modeled through a downregulation of ACE2 related to viral load.
After revision:  We applied our model to analyze the impact of SARS-CoV-2 infection on the RASsystem , which we modeled through a down-regulation of ACE2 related to viral load.