Post-viral fatigue syndrome, also known as PVFS, is a medical condition characterized by severe and persistent fatigue that occurs after an individual has experienced a viral infection. The onset of PVFS typically follows a period of acute viral illness, such as influenza, Epstein-Barr virus (EBV), or viral respiratory infections. The condition is often associated with other symptoms, including cognitive difficulties, muscle or joint pain, flu-like symptoms, impaired sleep, headaches, and swollen glands.
PVFS is believed to result from an abnormal immune response triggered by the viral infection, leading to persistent fatigue and ongoing symptoms. The exact underlying mechanisms and causes of PVFS are not yet fully understood, and the condition can vary widely in terms of severity and duration among different individuals.
Diagnosing PVFS often involves excluding other medical conditions that could be causing similar symptoms, as there are currently no specific diagnostic tests for this syndrome. Treatment options primarily focus on managing symptoms and improving overall well-being. These may include lifestyle changes, such as rest, pacing activities, and maintaining a balanced diet, as well as medications to alleviate specific symptoms, such as pain or sleep disturbances.
The prognosis for individuals with PVFS is generally positive, with most people gradually recovering over time. However, some cases may experience prolonged or permanent fatigue and associated symptoms, requiring ongoing medical management and support.