Background Olfactory dysfunction (OD) has been gaining recognition as a symptom of
COVID-19, but its clinical utility has not been well defined. Objectives To quantify the clinical …

Background Olfactory dysfunction (OD) has been reported in coronavirus disease 2019
(COVID-19). However, there are knowledge gaps about the severity, prevalence, etiology …

Aims To systematically review the currently available evidence investigating the association
between olfactory dysfunction (OD) and the novel coronavirus (COVID‐19). To analyse the …

The first cases of coronavirus 2019 (COVID-19) occurred in Wuhan, China, and rapidly
become a public health emergency of international proportions. The disease may cause …

Objectives Loss of smell or taste are early symptoms of COVID-19. Given the high
asymptomatic rate of COVID-19, as well as unreliable temperature checking and contact …

Background Olfactory dysfunction (OD) is common and has been reported as an early
indicator of COVID-19. However, the reported prevalence of OD in the general population …

Objective To investigate prevalence and recovery of olfactory dysfunction (OD) in COVID‐19
patients according to the disease severity. Methods From 22 March to 3 June 2020, 2581 …

The purpose of this multicenter case-control study was to evaluate a group of patients at
least 1 year after coronavirus disease 2019 (COVID-19) with Sniffin'Sticks tests and to …

Background Many patients with coronavirus disease 2019 (COVID-19) complain from
olfactory dysfunction (OD). Aims/objectives: To evaluate the prevalence, prognosis, and …

Objective To investigate the prevalence and recovery of olfactory dysfunction (OD) in COVID‐
19 patients 24 months after the infection. Methods From 22 March 2020 to 5 June 2022, 251 …