The study excludes the minority of young people who get severe breathing problems in the acute phase of the disease so your friend would not be included. The re

The study excludes the minority of young people who get severe breathing problems in the acute phase of the disease so your friend would not be included. The result just shows that the large majority that does not get severe breathing problems in the acute phase (in fact most young people do not get any symptoms at all) does not get long term lung damage.