The presence of long-lasting symptoms after suffering an acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has recently extensive attention in the last years. One of the first meta-analyses investigating the prevalence of these symptoms found that >60 % of patients who had surpassed the coronavirus disease 2019 (COVID-19) can experience post-COVID symptomatology the following months after the infection, being fatigue the most prevalent symptom [1]. A recent meta-analysis has reported again that 28 % (95 % CI 12.0 to 47.0) of COVID-19 survivors exhibit fatigue as a post-COVID symptom two years after a severe SARS-CoV-2 infection [2].
