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Αλέξανδρος Γ. Σφακιανάκης

Thursday, November 25, 2021

New onset of smell and taste loss are common findings also in patients with symptomatic COVID‐19 after complete vaccination

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Abstract

Objective

To investigate the clinical profile of patients who developed coronavirus disease 2019 (COVID-19) after full vaccination.

Methods

Demographic, epidemiological and clinical data were collected through medical records and online patient-reported outcome questionnaire from patients who developed symptomatic SARS-CoV-2 infection, confirmed by nasopharyngeal swab, at least two weeks after completion of vaccination.

Results

153 subjects were included. The most frequent symptoms were: asthenia (82.4%), chemosensory dysfunction (63.4%), headache (59.5%), runny nose (58.2%), muscle pain (54.9%), loss of appetite (54.3%) and nasal obstruction (51.6%). Particularly, 62.3% and 53.6% of subjects reported olfactory and gustatory dysfunction, respectively. Symptom severity was mild or moderate in almost all cases.

Conclusions

Chemosensory dysfunctions have been observed to be a frequent symptom even in subjects who contracted the infection after full vaccination. For this reason, the sudden loss of smell and taste could continue to represent a useful and specific diagnostic marker to raise the suspicion of COVID-19 even in vaccinated subjects. In the future, it will be necessary to establish what the recovery rate is in these patients.

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