Covid‐19 Infection and Parkinsonism: Is There a Link?
Rabia Bouali‐Benazzouz, Abdelhamid Benazzouz
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is an opportunistic pathogen that infects the upper respiratory tract in humans and causes serious illness, including fatal pneumonia and neurological disorders. Several studies have reported that SARS-CoV-2 may worsen the symptoms of Parkinson's disease (PD), with the potential to increase mortality rates in patients with advanced disease. The potential risk of SARS-CoV-2 to induce PD has also been suggested because the virus can enter the brain, where it can trigger cellular processes involved in neurodegeneration. In this review, we will discuss the potential of SARS-CoV-2 to exacerbate and cause certain neurological disorders, including PD. We will then elucidate its impact on the brain while examining its pathways and mechanisms of action. © 2021 International Parkinson and Movement Disorder Society.