Before revision:  This behaviour is predicted by a model that assumes that deaths are caused by the degradation of the ACE2 receptor by the virus , which uses it as entry point in the cells.
After revision:  This behaviour is consistent with a previous mathematical model that predicts that the speed of the virus in URLanism has a maximum and then declines with receptor level. SARS-Cov-2 degrades ACE2 receptor by the virus , which uses it as entry point in the cells.