Persistent pulmonary impairment after 2 years of COVID-19 infection: An observational study.

Background: Persistent dyspnoea and pulmonary function impairment are common after coronavirus disease 2019 (COVID-19). However, long-term outcomes beyond 2 years of infection are unknown.

Methods: In this single-center study, we observed the trend of self-reported dyspnoea and pulmonary functions among subjects attending a post-COVID clinic in India after 2 years of COVID-19 illness.