The fatigue spectrum in a community-based long haul COVID cohort.
Carter, Isabelle V, May, Anna, Hsieh, Isabella C et al.·Sleep & breathing = Schlaf & Atmung·2026
This study looked at 277 people with long COVID who visited a specialized clinic, focusing on those experiencing fatigue. About 73% reported fatigue as a main symptom, but only about 22% of those met the strict ME/CFS diagnostic criteria. The researchers found that fatigue severity varied widely, and fatigue often came alongside other symptoms like brain fog, anxiety, and reduced physical functioning.