Covid-19 could be suspected when patients report severe reduction of taste and smell in the absence of nasal obstruction, according to a study which says the findings can help general physicians identify and quarantine potential infected individuals before confirmation of diagnosis. In the study, published in the journal JAMA Otolaryngology Head & Neck Surgery, scientists surveyed 204 Covid-19 patients and found that taste reduction was present in 55 per cent of them, whereas smell reduction was observed in about 41 per cent of the people.
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