COVID-19: Study Shows Why Loss of Smell Persists Even After Recovery

COVID-19 hits the headlines again As patients continue to grow in China Many researchers have tried to find out more about the condition. They are trying to figure out how Covid-19 affects people in the long run. Loss of smell is one of the most common symptoms faced by people who have tested positive for COVID-19. Now, a new study has provided insight into why some people are unable to fully smell even months after. recovered from COVID-19 The researchers found that it was linked to a sustained immune attack on olfactory neurons and a corresponding reduction in cell numbers.

A team of researchers from Harvard, Duke, and the University of California-San Diego studied 24 biopsy samples of the olfactory epithelium. It’s called anosmia after the Covid-19 infection.

sense of smell
Loss of smell is a common symptom of COVID-19. Image Courtesy: Shutterstock

Loss of smell continues in some people even after recovering from COVID-19.

Senior author Bradley Goldstein, an associate professor in Duke’s Department of Head and Neck Surgery and Communication Sciences, said one of the earliest symptoms Often linked to Covid-19 infection is “smell.” He noted that many people are affected by the smell during infection. It will heal within the next one to two weeks. But there are some people who can’t fully perceive the smell.

In a study published in the journal Science Translational Medicine, researchers wanted to examine the olfactory epithelium. which is the tissue in the nose where the olfactory nerve cells are located in people who have lost their smell for a long time

The researchers found infiltration of T cells involved in the inflammatory response in the olfactory epithelium. And this inflammatory process continues even without SARS-CoV-2, which causes COVID-19.

It was also found that the number of olfactory neurons decreased. This may be because the delicate tissues are damaged by ongoing inflammation.

People infected with COVID-19 May be more likely to develop new health conditions

After recovering from COVID-19 Life doesn’t always go back to normal. At least not for everyone. According to the Centers for Disease Control and Prevention, some people, especially those with severe COVID-19, experience multi-organ effects or autoimmune conditions. Symptoms persist for weeks, months, or even years after being infected with COVID-19.

End of COVID-19
People with COVID-19 may end up with a new health condition Image Courtesy: Shutterstock

Multiple organ effects can include the lungs, heart, kidneys, brain and even the skin. from these effects People who have had COVID-19 May be more likely to develop the following health conditions –

• Diabetes
• heart condition
• blood clots
• neurological conditions

Symptoms you can have after being infected with COVID-19

Most people infected with the coronavirus recover within 12 weeks, but for some Symptoms may last longer, according to the UK National Health Service.

Symptoms after COVID-19 Some may include

• Memory and concentration problems.
• Chest pain or tightness in the chest.
• Difficulty falling asleep
• Depression and anxiety.
• Cough, headache, sore throat, and altered sense of smell or taste.

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