Raising the awareness for a possible COVID 19 postinfectious neurocognitive syndrome

Neurologic and sensory symptoms of COVID-19 are common, including olfactory dysfunction, headache, and dizziness. Other betacoronaviruses show neuroinvasiveness properties, and there is evidence that it may be partially responsible for the acute respiratory failure induced by SARS-CoV-2. Sudden onset anosmia is a prevalent symptom in a large number of paucisymptomatic patients and is probably caused by a dysregulation of the olfactory neuroepithelium. Early signs of anosmia can predict memory impairments even among cognitively healthy individuals. Hence, it is essential to study neurocognition in patients with a history of anosmia and COVID-19.