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. 2020 Nov;66(11):1602-1608.
doi: 10.1590/1806-9282.66.11.1602.

Smell and taste alterations in COVID-19 patients: a systematic review

Laura Faustino Gonçalves  1 , Ana Inês Gonzáles  2 , Karina Mary Paiva  3 , Fernanda Soares Aurélio Patatt  4 , Janaina Viana Stolz  5 , Patrícia Haas  3
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Free article

Smell and taste alterations in COVID-19 patients: a systematic review

Laura Faustino Gonçalves et al. Rev Assoc Med Bras (1992). 2020 Nov.
Free article

Abstract

Objective: To present scientific evidence based on a systematic review of the literature (PRISMA) to systematize information on smell and taste alterations in patients diagnosed with COVID-19.

Methods: The studies were selected through combinations based on the Medical Subject Headings (MeSH). The MEDLINE (PubMed), LILACS, SciELO, and BIREME databases were used. The search encompassed articles published from January 2010 to May 2020, with no restriction of language or localization.

Results: A total of 665 retrieved articles had the potential for inclusion. Of these, two answered the research question, which was to verify the smell and taste alterations in patients diagnosed with COVID-19.

Conclusion: The results found in this review demonstrated that there likely is an association between self-reported smell and taste dysfunctions and COVID-19 infection in such patients.

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