STUDY TO EVALUATE THE ROLE OF T CELL-DYSFUNCTION IN SYMPTOMS ASSOCIATED WITH LONG COVID, LYME DISEASE AND MYALGIC ENCEPHALOMYELITIS/CHRONIC FATIGUE SYNDROME USING THE VIRAXIMMUNE FLUOROSPOT T CELL ASSAY
This is a longitudinal observational study recruiting individuals that have attended three clinical sites with symptoms associated with a diagnosis of long COVID, PTLDS or ME/CFS. The study will be a multi-centre study, with up to 160 male and female participants enrolled. Participants that experience symptoms considered to be associated with a diagnosis of long COVID, PTLDS or ME/CFS will consent to the study, and attend for two study visits (at study entry and 6 months) to complete a questionnaire related to their symptoms, and to have a blood sample taken. Blood samples will be taken either at the clinical site or at the participant's home if they are unable to attend due to the severity of their illness. . Participants will be allocated to one of the following groups: Group 1: Long COVID Group 2: ME/CFS Group 3: PTLDS Group 4: Healthy Control
• Aged 18 years or older
• History of acute COVID-19 infection (medically recorded)
• Symptoms of fatigue and, shortness of breath and/or, joint pain and/or, problems with memory and concentration which have been present for more than a period of 6 months post infection
• Nonsteroidal anti-inflammatory drugs (NSAIDs such as ibuprofen, diclofenac, aspirin, etc.) must have been stopped at least 48 hours prior to admission to the clinical research centre (evaluation through questionnaire).
• Willing and able to sign the ICF and comply with study procedures.