Persistent Cerebral 18-FDG PET Changes in Patients With Long COVID Presenting With Fatigue and Post Exertional Malaise

Ravindra Ganesh, Kaavya Nair, Stephanie L. Grach, Ivana T. Croghan, Siddhant Yadav, Ryan T. Hurt, Michael R. Mueller, Department of Internal Medicine, Division of General Internal Medicine, Mayo Clinic, Department of Quantitative Health Sciences, Mayo Clinic, Department of Internal Medicine, Division of Endocrinology, Metabolism and Nutrition, Mayo Clinic, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic

Journal of Primary Care & Community Health

Published online on June 09, 2026

Abstract

Journal of Primary Care & Community Health, Volume 17, January-December 2026.
ObjectiveLong COVID (LC) refers to the long-term symptoms occurring after SARS-CoV-2 infection and resolution of the initial disease prodrome. While LC is increasingly recognized, knowledge about its biomarkers is still limited. This study examines ...