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

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 The presence of olfactory dysfunction or “loss of smell” has been reported as an
atypical symptom in patients with coronavirus disease 2019 (COVID-19). We performed a …

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 …

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 …

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

Objective To estimate the prevalence of olfactory and gustatory dysfunctions (OGDs) among
patients infected with novel coronavirus disease 2019 (COVID-19). Methods A systematic …

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 …

Background Considerable evidence suggests that smell dysfunction is common in
coronavirus disease‐2019 (COVID‐19). Unfortunately, extant data on prevalence and …