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The disease also usually causes the loss of taste and the other senses of the mouth.
Two international studies confirm that in the majority of patients with respiratory infections who lose their sense of smell it is due to covid-19. The disease also usually causes the loss of taste and the other senses of the mouth.
The study, published in the scientific journal 'Chemical Senses', shows that the average loss of the sense of smell was 79,7 on a scale of 0 to 100, indicating a large to complete sensory loss. Additionally, studies show that loss of smell is most likely the best predictor of COVID-19 among patients with symptoms of respiratory diseases.
In addition to the loss of the sense of smell, the sense of taste was also significantly reduced, down to 69 on a scale of 0 to 100, as was the remaining sense of sensation in the mouth, this time down to 37,3 on a scale from 0 to 100.
"Although the loss of smell in itself eliminates the ability to perceive the aroma of food, the simultaneous loss of the other senses makes it difficult to register what one eats. Therefore, putting food in the mouth can become an experience decidedly unpleasant," explains one of the study leaders, Alexander Wieck Fjaeldstad.
A total of 23 nationalities and more than 4.500 coronavirus patients from around the world have responded to the researchers' questionnaire. Previously, researchers had based the correlation between Covid-19 and the loss of chemical senses on smaller studies, while these studies collect large amounts of data from countries around the world.
