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.