Journal
AMERICAN JOURNAL OF OTOLARYNGOLOGY
Volume 42, Issue 2, Pages -Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.amjoto.2020.102889
Keywords
COVID-19; SARS-CoV-2; Anosmia; Ageusia; Smell; Taste
Categories
Funding
- Coordination for the Improvement of Higher Education Personnel (CAPES -Brazil)
- National Council for Scientific and Technological Development (CNPq -Brazil)
- Pro-Rectory for Research and Innovation (Propesqi -UFPE)
- Foundation for the Support of Science and Technology of Pernambuco (FACEPE -Brazil)
Ask authors/readers for more resources
The onset of loss of smell and taste symptoms in COVID-19 patients typically occurs 4 to 5 days after other symptoms appear, and lasts for 7 to 14 days; however, findings vary and further research is needed to clarify these symptoms.
Objective: The aim of the study was to conduct a systematic review of the literature to investigate the time of onset and duration of symptoms of loss of smell and taste in patients diagnosed with COVID-19. Methods: Two independent authors performed a systematic review of the Medline/PubMed, SCOPUS, COCHRANE, Lilacs and Web of Science electronic databases. The time of onset and duration of symptoms were considered primary outcomes. The sex and age of individuals, the geographical location of the study, the prevalence of symptoms, other associated symptoms, associated comorbidities, and the impact on quality of life and eating habits were considered secondary outcomes. Results: Our search generated 17 articles. Many of the studies reported that the onset of anosmia and ageusia occurred 4 to 5 days after the manifestation of other symptoms of the infection and that these symptoms started to disappear after one week, with more significant improvements in the first two weeks. Conclusion: The present study concludes that the onset of symptoms of loss of smell and taste, associated with COVID-19, occurs 4 to 5 days after other symptoms, and that these symptoms last from 7 to 14 days. Findings, however, varied and there is therefore a need for further studies to clarify the occurrence of these symptoms. This would help to provide early diagnosis and reduce contagion by the virus.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available