Strength and limitations
We have reported very valuable and validated objective tool for screening OD in patient with severe COVID-19. This is considered a strength to our study. Moreover, using an objective test avoids the response bias as patients can be influenced by the news that report smell and taste dysfunction in COVID-19 and overreported these symptoms.
On the other hand, this study has some limitations where most of our study population was having moderate to severe COVID 19 symptoms whom required hospitalization; for that mild cases were missed. Finally, duration of the symptoms and recovery rate were not assessed very well in this study.