Have you ever caught a cold and found it difficult to smell and taste your food? That often happens due to nasal congestion and recovers after you blow your nose or take some decongestants. However, the olfactory dysfunction recently observed in COVID-19 occurs in the absence of your usual URTI symptoms, indicating possible direct damage to the olfactory nerve and neuroepithelium. How do you assess olfactory dysfunction? And how does the nose relate to the brain?
Click here for a 15-minute JAMA audio interview on olfactory & gustatory dysfunction in COVID-19 patients.