According to the latest report from the World Health Organization and the Pan American Health Organization, COVID-19 currently presents a morbidity of 29.6 % and constituted 43.6 % of deaths worldwide. Although mortality rates have decreased considerably, many cases of patients with post-COVID sequelae have been reported around the world; in fact, more than 87 % of patients continue to experience at least one symptom two months after the onset of infection. The objective of the present review is to describe myalgic encephalomyelitis/chronic fatigue syndrome as a Complication of the post-acute syndrome of COVID-19 in Adults. Cases of survivors of COVID-19 have been reported who report the presence of sequelae, persisting for several months after being discharged. Data from post-acute COVID-19 patient reports and early observational studies suggest a syndrome similar to myalgic encephalomyelitis/chronic fatigue syndrome, a chronic, multisystem disease that has been associated with other infections. Within the general population, the prevalence of chronic fatigue ranges between 10 and 40 %, while the ME/CFS association constitutes 0.17-0.89 % and is more common in females.