The investigation of diverse clinical, biological and social data (including pathology, and at times obtained directly via volunteer studies) to inform and improve clinical practice for the diagnosis and monitoring of ME/CFS and long COVID patients. This includes research on potential biomarkers and/or biomarker patterns for diagnosis/monitoring, the development of simple diagnostic guidelines to assist community GPs with frontline assessment of patients, along with understanding of the impacts of these conditions on individual mental health, as well as the societal implications of workforce participation and caring roles within communities. Interests in infection and immune response are included for this project.