In addition to its early devastation, COVID-19 has left lasting damage. Millions of Americans now suffer from long-term symptoms after infection. Fatigue, chronic pain, and brain fog impact daily life and work. ME/CFS and post-COVID syndrome (PCS) now pose major health risks.
The long COVID crisis continues with few clear answers. Every new finding helps build a better picture of the illness. A recent study published in Allergy offers fresh hope. It shows a strong link between gut health and PCS fatigue.
Researchers in Vienna found the gut barrier may play a key role. They tracked patient gut health before, during, and after infection. Blood, saliva, and stool samples were used to find biomarkers. People with prior gut issues were more likely to develop PCS.
These patients also showed shifts in their immune system markers. The study suggests PCS could begin with immune and gut disruptions. Researchers say tracking symptoms and biomarkers may lead to earlier diagnosis. This could help identify at-risk patients and guide treatment.