A number of models can be used to predict Corona. The one that was easiest to use for me is the SIR model. SIR is based on parts of the population that go through certain phases. Infectious, Infected and Recovered or deceased. (Susceptible Infected Recovered, SIR). Conversion rates apply between these phases. e.g. with the Corona sickness, 1 person infects 2.3 other people. They also call this the R0. Using the literature on the internet and source code from Kaggle I made a number of new graphs that compare the theoretical contamination with the contamination realized. These charts are here. It looks like Italy is going in the right direction. I am working at better predictions.