Testing olfactory dysfunction in acute and recovered COVID-19 patients: a single center study in Italy.
Jacopo PasquiniCarlo MaremmaniStefano SalvadoriVincenzo SilaniNicola TicozziPublished in: Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology (2021)
Moderate-to-severe hospitalized patients showed a high level and frequency of olfactory dysfunction compared to recovered subjects. In the latter group, subjects who reported persisting olfactory dysfunction showed abnormal scores on psychophysical testing, indicating that, at least in some subjects, persistent hyposmia may represent a long-term sequela of COVID-19.