To The Editor
Since the onset of the coronavirus disease 2019 (COVID-19) pandemic,
many patients reported sudden loss of smell (SLS).1 However, due
to the sanitary situation, only a few studies investigated SLS with
objective testings, which remains essential to confirm the olfactory
dysfuntion.2-4 All these studies involved outpatients with mild
COVID-19 forms. The mean age and the prevalence of comorbidities were
low,2-4 leading some authors to suspect that SLS could be more
specific to mild COVID-19 forms.5 In this study, we investigated
the prevalence of self-reported and objective SLS in severe COVID-19
patients.