Dear Editor,rnCoronavirus disease 2019(COVID-19)is a viral infection caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).From March 2020,several studies indicate that many subjects affected by mild-to-moderate COVID-19 presented olfactory/gustatory dysfunction(OD/GD)that appeared strongly correlated between them but not with the other symptoms suggestive of upper air-way infection(Lechien et al.2020a,b;Hopkins et al.2020;Paderno et al.2020).