Covid-19 And Brain Fog: How Some Infections Affect The Neurological System

Difficulty thinking, concentrating, and remembering are amongst the most debilitating long-haul symptoms of COVID-19. In some cases, this “brain fog” can linger for months. Of the first 100 patients with confirmed COVID-19 infections whose symptoms lasted at least six weeks, 81 reported experiencing brain fog. Until recently, the underlying causes of these lingering COVID-19 neurological symptoms have been a mystery. New research helps explain how SARS-CoV-2, the virus that causes COVID-19, spreads to the brain and why some patients experience severe neurological symptoms while others do not.