inclusion criteria: defined diagnosis of interstitial pneumonia due to covid-19; two negative nasopharyngeal swab test for sars-cov-2; functional independence before the covid-19; mini-mental state examination (mmse) score > 24.

inclusion criteria: defined diagnosis of interstitial pneumonia due to covid-19; two negative nasopharyngeal swab test for sars-cov-2; functional independence before the covid-19; mini-mental state examination (mmse) score > 24.