Covid-19 affected people very differently. On one end of the spectrum, it produced a mild illness. On the other end, it caused devastating complications. Many people who fall into the second category are now facing a second battle: lung damage. Researchers from Brazil observed long-term functional abnormalities in the lungs of patients who had required intubation and were discharged from the hospital two years ago. The São Paulo researchers also documented a return of pulmonary lesions after 24 months in some people who appeared to have fully recovered on being discharged. The study involved 2…
