The taste of the pandemic-contemporary review on the current state of research on gustation in coronavirus disease 2019 (COVID-19).
Int Forum Allergy Rhinol
; 12(2): 210-216, 2022 02.
Article
in English
| MEDLINE | ID: covidwho-1487435
ABSTRACT
Subjectively perceived impairment of taste is a common and distinct symptom of coronavirus disease 2019 (COVID-19). Large meta-analyses identified this symptom in approximately 50% of cases. However, this high prevalence is not supported by blinded and validated psychophysical gustatory testing, which showed a much lower prevalence in up to 26% of patients. This discrepancy may be due to misinterpretation of impaired retronasal olfaction as gustatory dysfunction. In addition, we hypothesized that COVID-19-associated hyposmia is involved in the decrease of gustatory function, as found for hyposmia of different origin. This indirect mechanism would be based on the central-nervous mutual amplification between the chemical senses, which fails in COVID-19-associated olfactory loss. However, further research is necessary on how severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) may directly impair the gustatory pathway as well as its subjective perception.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
COVID-19
/
Olfaction Disorders
Type of study:
Observational study
/
Prognostic study
/
Reviews
Limits:
Humans
Language:
English
Journal:
Int Forum Allergy Rhinol
Year:
2022
Document Type:
Article
Affiliation country:
Alr.22902
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