anosmia in COVID-19. Severe acute respiratory syndrome coronavirus 2 through the nasoliary epithelium and a possible spreading way to the central nervous system—a purpose to study

Italy is currently one of the countries most affected by the global emergency of COVID-19, a lethal disease of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).1 A lot of emergency centers from China,2 United Kingdom, and Italy,3 including our Department of Policlinic Umberto I of Rome, reported a significant number of COVID-19 patients presenting anosmia and ageusia as onset symptoms,4 and it is reported that anosmia appear at an early stage of the disease.