Olfactory and Taste Dysfunction in Indian Population with COVID-19: A Study on 300 Patients

The novel coronavirus disease 2019 is an ongoing pandemic and a global health emergency. Since the main portal of entry for the virus is the nose, olfactory and taste dysfunction have gained attention as important symptoms in COVID-19. The primary objectives are to assess the prevalence of olfactory and taste dysfunction in patients affected with COVID-19. And to determine whether anosmia and ageusia are early predictors of COVID-19. A prospective study was conducted on 300 patients who were laboratory diagnosed cases of COVID-19 admitted in tertiary care centre and a covid care centre. A written informed consent was taken. All patients underwent olfactory and taste examination and the details were noted in a case-record proforma. The prevalence of olfactory dysfunction in COVID-19 patients was 21% and that of taste dysfunction was 26.6%. Majority of the affected individuals were males and mainly of the younger age group. These symptoms lasted for a duration of 7-9 days and 97% of the patients showed complete recovery. Acute sudden onset olfactory and taste dysfunction seems to be a useful indicator for early diagnosis of patients thus helping in early isolation, timely management of the illness and controlling the spread of the disease.