Researchers have defined the term 'long covid' as the inability to recover from the symptoms associated to COVID-19 even after months from the peak of the disease1 . Fatigue, myalgia, chest pain, shortness of breath, cardiac problems, like post-viral myocarditis, and diarrhea have been reported1 . Recently, Huang et al.2 have described the long-term outcomes of the SARS-CoV-2 infection in patients who were previously hospitalized because of COVID-19: the majority of them presented myasthenia, fatigue and pulmonary diffusion abnormalities.