Not without CT scans of COVID-19 patients and doctors' reports, I couldn't. We do have those, however. We can't know what percentage end up with lung scarring.

Not without CT scans of COVID-19 patients and doctors' reports, I couldn't. We do have those, however. We can't know what percentage end up with lung scarring. With CT scans, we need to wait to see how lungs recover with time. With doctor's reports, it's anecdotal; we have no statistics. It might be 1%, or it might be 20%. I'm betting on the 5-6% range. That's an educated guess, based on hospitalization and ICU rates and how the disease progresses.