doubling time

What is the doubling time of COVID-19 infected cases?

Disclaimer: I am not an immunologist nor an epidemiologist. What I do know something about is time series analysis. Background At home under quarantine/lockdown/shutter-in-place rules, I like many cannot but help read the news about COVID-19. I have been disconcerted by the daily vassilation in the news, for example, of whether the growth in the number of cases in Italy and Spain have stabilized. Since we live in the age of data, I decided to quantify the time it takes to double the number of infected individuals in different countries.