Do you have any actual evidence for this? I keep hearing people bringing up 'permanent damage' but it's impossible to say something in 'permanent' when this has been around less than 6 months. Lung damage from pneumonia takes 3~4 months to heal (I had pneumonia in University, as well as one of my good friends. It took me out for over a month and he had to drop out for the semester. My lungs did not fully recover for 3 months, but they've been fine in the 20 years since).
Every article I've seen is either vary vague, or it's talking about elderly people in care homes with other existing conditions. The permanent damage narrative feels like straight up fear-mongering.