Taste and Smell Loss
COVID-19 can cause a loss of taste and smell. Approximately 80% of patients are affected. It has been shown that the SARS-CoV-2 virus enters the central nervous system through the mucous membranes of the olfactory and gustatory systems and can damage or destroy sensory cells.
Due to the damage or destruction of these cells, only an incomplete olfactory impression reaches the brain. This can lead to olfactory or gustatory confusion, so that affected persons can no longer recognize the smell or taste of coffee, for example. This can also impact appetite.
Fortunately, the sensory cells can renew themselves, and the course of olfactory and taste disorders with COVID-19 is generally considered favorable by experts.