Before revision:  This change of the independent variable overcomes the crucial issue of analyzing very different countries worldwide within one mathematical framework with similar parameters. This was previously impossible leading to individual description for every country. Our model allows describing the pandemicincluding its endpoint surprisingly good and giving a figure of merit for the success of the measuresto fight the pandemic .
After revision:  This change of the independent variable . Analyzing a few hot spots data, we derive an empirical formula for the dynamics, dependent only on three variables. The final number of infections is strictly connected to one fit parameter we call mitigation factor, which in turn is mostly dependent only on the enclosed population. Despite its simpleness, this description applies to every of the around 50 countries we have analyzed, allows to separate different waves of the pandemic, provides a figure of merit for the success of the measuresto fight the pandemic .