Conclusion
The prevalence of subjective and objective OD was higher in mild COVID-19 patients compared with moderate and severe-to-critical patients. Subjective GD and AD could be more prevalent in mild COVID-19 forms but future studies using objective taste measurements are needed to confirm these findings. Age, gender and diabetes were identified as favoring factors of development of OD, GD or AD while hypertension was associated with a lower probability to develop OD.