Serotonin Slump: The Viral Residue Connection to Long COVID Symptoms
Components of the SARS-CoV-2 virus remain in the gut of some long COVID patients, causing persistent inflammation, vagus nerve dysfunction, and neurological symptoms. Patients with long COVID – the long-term symptoms like brain fog, fatigue, or memory loss in the months or years following COVID-1
Source: scitechdaily.com