inclusion criteria: 1. male or female individuals 18 years-old or older. 2. evidence of previous sars-cov-2 infection at least 90 days prior to study recruitment, defined by either (a) nasopharyngeal sars-cov-2 nucleic acid test (polymerase chain reaction \[pcr\] or transcription-mediated amplification \[tma\] (b) validated nasopharyngeal lateral flow assay rapid antigen test \[rat\], or (c) sarscov-2 serology before sars-cov-2 vaccination. 3. symptoms of pcc after 90 days of infection and that last for at least 2 months and cannot explained by an alternative diagnosis. 4. not able to perform all usual duties/ activities due to symptoms, pain, depression or anxiety, defined as grades 3 or 4 in the post-covid-19 functional status (pcfs) scale. 5. availability of an adequate peripheral venous cannulation. 6. if women of childbearing potential, use of a highly effective method of contraception (abstinence, hormonal contraception, intra-uterine device \[iud\], or anatomical sterility in self). 7. willing to comply with the requirements of the protocol and available for followup for the planned duration of the study. 8. has understood the information provided and capable of giving informed consent. exclusion criteria

inclusion criteria: 1. male or female individuals 18 years-old or older. 2. evidence of previous sars-cov-2 infection at least 90 days prior to study recruitment, defined by either (a) nasopharyngeal sars-cov-2 nucleic acid test (polymerase chain reaction \[pcr\] or transcription-mediated amplification \[tma\] (b) validated nasopharyngeal lateral flow assay rapid antigen test \[rat\], or (c) sarscov-2 serology before sars-cov-2 vaccination. 3. symptoms of pcc after 90 days of infection and that last for at least 2 months and cannot explained by an alternative diagnosis. 4. not able to perform all usual duties/ activities due to symptoms, pain, depression or anxiety, defined as grades 3 or 4 in the post-covid-19 functional status (pcfs) scale. 5. availability of an adequate peripheral venous cannulation. 6. if women of childbearing potential, use of a highly effective method of contraception (abstinence, hormonal contraception, intra-uterine device \[iud\], or anatomical sterility in self). 7. willing to comply with the requirements of the protocol and available for followup for the planned duration of the study. 8. has understood the information provided and capable of giving informed consent. exclusion criteria

inclusion criteria: male or female individuals 18 years-old or older. evidence of previous sars-cov-2 infection at least 90 days prior to study recruitment, defined by either (a) nasopharyngeal sars-cov-2 nucleic acid test (polymerase chain reaction [pcr] or transcription-mediated amplification [tma] (b) validated nasopharyngeal lateral flow assay rapid antigen test [rat], or (c) sarscov-2 serology before sars-cov-2 vaccination. symptoms of pcc after 90 days of infection and that last for at least 2 months and cannot explained by an alternative diagnosis. not able to perform all usual duties/ activities due to symptoms, pain, depression or anxiety, defined as grades 3 or 4 in the post-covid-19 functional status (pcfs) scale. availability of an adequate peripheral venous cannulation. if women of childbearing potential, use of a highly effective method of contraception (abstinence, hormonal contraception, intra-uterine device [iud], or anatomical sterility in self). willing to comply with the requirements of the protocol and available for followup for the planned duration of the study. has understood the information provided and capable of giving informed consent. exclusion criteria

inclusion criteria: male or female individuals 18 years-old or older. evidence of previous sars-cov-2 infection at least 90 days prior to study recruitment, defined by either (a) nasopharyngeal sars-cov-2 nucleic acid test (polymerase chain reaction [pcr] or transcription-mediated amplification [tma] (b) validated nasopharyngeal lateral flow assay rapid antigen test [rat], or (c) sarscov-2 serology before sars-cov-2 vaccination. symptoms of pcc after 90 days of infection and that last for at least 2 months and cannot explained by an alternative diagnosis. not able to perform all usual duties/ activities due to symptoms, pain, depression or anxiety, defined as grades 3 or 4 in the post-covid-19 functional status (pcfs) scale. availability of an adequate peripheral venous cannulation. if women of childbearing potential, use of a highly effective method of contraception (abstinence, hormonal contraception, intra-uterine device [iud], or anatomical sterility in self). willing to comply with the requirements of the protocol and available for followup for the planned duration of the study. has understood the information provided and capable of giving informed consent. exclusion criteria