COVID-19 and Smell Loss

The world has been facing a tremendous threat for more than 1 year by coronavirus disease 2019 (COVID-19) Because of the ongoing pandemic of COVID-19, it is necessary to be aware of the characteristics and symptoms of COVID-19 in order to prevent the COVID-19 spread Common symptoms of COVID-19 include fever, cough, shortness of breath, headache and various types of pneumonia Recently, smell loss has been extensively reported in COVID-19 patients They experience this before other general symptoms or smell loss can be their only symptom These types of patients may be neglected and a potential source for viral spread Thus, screening tests of COVID-19 should be considered if patients have smell loss without any other nasal symptoms Even though the recovery rate of smell loss in COVID-19 is relatively high, there are unmet needs for further studies including the mechanism of olfactory dysfunction, proper treatment and long-term recovery in COVID-19 © 2020 Korean Journal of Otorhinolaryngology-Head and Neck Surgery