Doctors from around the world are reporting cases of COVID-19 patients who have lost their sense of smell, known as anosmia, or taste, known as ageusia. The director of the University of Florida’s Center for Smell and Taste and the co-director of the UF Health Smell Disorders Program answer questions about this emerging trend.
Is the loss of smell an early sign of COVID-19?
Loss of smell occurs with the common cold and other viral infections of the nose and throat. Anecdotal reports suggest the loss of smell may be one of the first symptoms of COVID-19. Doctors around the world are reporting that up to 70% of patients who test positive for the coronavirus disease COVID-19 – even those without fever, cough or other typical symptoms of the disease – are experiencing anosmia, a loss of smell, or ageusia, a loss of taste. A new study just published found that 20 of 59 patients (ages 50-74) interviewed in Italy reported a smell or taste loss. More research is needed to understand this link, but it may provide a low-cost, practical indicator of which people should self-isolate or get further testing, depending on the symptom severity and testing availability.
What are anosmia and ageusia?
The body’s chemical senses include smell, used to detect volatile odors, and taste, which recognizes food compounds like sugars, salts and acids. A number of chemosensory disorders result in the diminishment, distortion or complete loss of smell or taste functions. For example, anosmia is the complete loss or absence of smell, while hyposmia is a reduced ability to smell. Similarly, ageusia is an absence of taste. Continue reading.