In a new study looking at why some COVID-19 patients suffer long-term loss of their sense of smell, researchers found no sign of lingering infection in patients despite ongoing inflammation.
Scientists are working on determining the cause behind one of the most distinctive side effects of earlier strains of COVID-19—losing one’s sense of smell.
"One of the first symptoms that has typically been associated with COVID-19 infection is loss of smell," Bradley Goldstein, associate professor in Duke's Department of Head and Neck Surgery and Communication Sciences and the Department of Neurobiology and senior author of the new research,"Fortunately, many people who have an altered sense of smell during the acute phase of viral infection will recover smell within the next one to two weeks, but some do not.
The job of T-cells is to attack specific foreign particles in order to help the body fight a virus, but in these patients, the virus was long gone. Previous research on the topic has largely focused on autopsies of patients who died after having COVID-19, meaning they weren’t able to ask patients about their experiences of smell or have them take smell tests as researchers did in this new study.
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