Inclusion Criteria:  confirmed COVID-19 infection post-infection symptoms lasting longer than 3-6 months clinically stable persons regarding symtoms or other co-morbidities ability to participate in internet-based rehabilitation in group in Swedish.  Exclusion Criteria:  uncertainty regarding covid-19 infection or co-morbidities started or exacerbated during the same time alcohol and drug abuse untreated psychiatric and somatic co-morbidities undergoing medical or psychotherapeutic treatment or rehabilitation which can interact with rehabilitation outcomes.