Objectives/Hypothesis Olfactory dysfunction has been observed as one of the clinical
manifestations in COVID‐19 patients. We aimed to conduct a systematic review and meta …

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

Objective To determine the pooled global prevalence of olfactory and gustatory dysfunction
in patients with the 2019 novel coronavirus (COVID-19). Data Sources Literature searches of …

While olfactory dysfunction associated with coronavirus disease 2019 (COVID-19) has
attracted considerable interest, few studies have tracked outcomes at serial time points or …

Objectives A high frequency and a strong association of olfactory/gustatory impairment with
COVID‐19 were reported. Its spontaneous evolution remains unknown. The aim of this study …

Objective To investigate olfactory dysfunction (OD) in patients with mild coronavirus disease
2019 (COVID‐19) through patient‐reported outcome questionnaires and objective …

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 …

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 …

Objective Olfactory dysfunction (OD)—hyposmia or anosmia—is a symptom of coronavirus
disease 2019 (COVID-19), caused by the novel coronavirus, severe acute respiratory …

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 …