4. Comparing COVID positive and Olfactory Dysfunction
Populations
Two distinct populations have assessed in the literature. The first
group were those patients who had received testing and were confirmed
positive COVID19 patients, the prevalence of OD was then analysed. The
second were people who had experienced OD and the prevalence of COVID19
within this cohort. Menni et al and Yan et al report data from both
groups concurrently and presented data for both populations in their
results .