Chronic fatigue and stress intolerance, cognitive complaints, a limited ability to work, and reduced quality of life: these are the findings of a large-scale, long-term study in Baden-Württemberg on suffering after a coronavirus infection. For EPILOC (Epidemiology of Long Covid), researchers at the university hospitals in Freiburg, Heidelberg, Tübingen and Ulm analysed more than 1,500 formerly infected people and found that two thirds of patients suffering from post-Covid syndrome have barely recovered in the second year of their illness. Despite worsened functional parameters, laboratory tests show almost no pathological findings.