👉 Post-infectious infection, often referred to as "post-infection syndrome" or "long COVID," occurs when an individual who has recovered from an initial infection—such as COVID-19—experiences persistent symptoms for weeks, months, or even years afterward. This condition involves the body's immune system continuing to respond to the virus or its remnants, leading to inflammation and tissue damage in various organs. Symptoms can range widely, including fatigue, shortness of breath, cognitive difficulties (often termed "brain fog"), joint pain, and neurological issues. The exact mechanisms behind post-infectious infection are not fully understood but may involve autoimmune responses, persistent viral reservoirs, or prolonged inflammation. Diagnosis typically relies on clinical evaluation and exclusion of other conditions, as there is no specific test for it. Treatment focuses on managing symptoms and improving quality of life, often involving a combination of medications, physical therapy, and lifestyle adjustments.
