Hospitalization does not imply high risk. That article also has an unnecessarily wide range to make the data meaningless. Why are 20 year olds and 54 year olds bucketed in the same category?

For more accurate data, 0 deaths have occurred in Italy for those under 30. Under 40, the few (9) are due to severe pre-existing conditions. Median age for fatality is 80 years old.

The exponential curve not only applies for rate of infection but seems to be holding true for age as well.

Edit: Source for Italy data here - https://www.epicentro.iss.it/coronavirus/bollettino/Infograf...