Before revision:  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:  Our model allows describing the pandemicincluding its endpoint surprisingly good and giving a figure of merit for the overall usefulness of government measures, and shows when a pandemic is ending. Our model is robust against undetected cases, and allows all nations, in particular those with fewer resources, to reasonably predict the outcome of the pandemic in their country .