– a poorly understood condition that causes ongoing pain and fatigue in an estimated 1 in 40 people worldwide – could be caused by the immune system turning up the dial on pain-sensing nerves. Healthy mice injected with the antibodies of fibromyalgia patients displayed symptoms of the disorder, which cleared up once the antibodies were removed. The study author says it could also offer an explanation for long COVID. The SMC asked experts to comment on the study. Feel free to use these comments in your reporting or follow up with the contact details provided. Dr Bronwyn Lennox Thompson, Senior Lecturer, Academic Coordinator Postgraduate Programmes in Pain & Pain Management,