Authors: Mohamed Farah Yusuf Mohamud, Yahye Garad Mohamed, Abdiladhif Mohamed Ali, Bakar Ali Adam

2021, DovePress

Purpose

The purpose of this study was to identify the common clinical presentations and the evidence on the presence of ageusia and anosmia as an emerging coronavirus disease 2019 (COVID-19) symptom to better inform in both COVID-19 patients and clinicians.

Patients and Methods

As part of a double-institutional collaboration coordinated by doctors, this study retrospectively collected and analyzed the clinical characteristics of 60 patients with COVID-19 pneumonia between April 1 and April 20, 2020. Pregnant women and patients taking anti-cancer drugs had been excluded from the study. Data from each institution’s electronic medical record had been obtained.

Results

Sixty patients who had RT-PCR positive for COVID-19 were included in this study; of these patients, all of them had unknown exposure to COVID-19. The mean (SD) age was 45.7 (13.5) years, and 42 were men (70%). Of these patients, 80% had at least ageusia or anosmia. The most common symptoms at the onset of illness were cough (75%), fever (71.3%), myalgia or fatigue (53.3%), anosmia (loss of smell) (40%), ageusia (loss of taste) (28.3%), sore throat (25%), shortness of breath (16.7%), headache (16.7%), and GI symptoms (diarrhea, nausea, vomiting and loss appetite) (16.7%). A total of 68.3% of COVID-19 infected patients had reported either loss of taste or smell, and about 33.3% of them had only loss of smell, while 23.3% of them had impaired taste, and 11.7% of COVID-19 infected patients had both taste and smell loss.

Conclusion

During the epidemic period of SARS-CoV-2 infection, when presenting patients with ageusia and anosmia, physicians should consider COVID-19 pneumonia as a differential diagnosis to achieve early identification, avoid the delayed diagnosis, and prevention of transmission.