It is well known that the main symptoms of New Coronavirus pneumonia are fever, dry cough and malaise, and a few patients have upper respiratory and gastrointestinal symptoms such as nasal congestion, runny nose and diarrhea.

But did you know? Studies have found that loss or distortion of the sense of smell is present in the vast majority of patients with neocoronavirus pneumonia, so why does infection with neocoronavirus cause smell impairment?

One of the most common causes of loss of smell is viral infections. It is known that those coronaviruses that cause the common cold, sinus or other upper respiratory tract infections can cause nasal congestion, which can lead to smell impairment. And all of these viral infections can cause nasal congestion and runny nose symptoms, so some people may ask the question: Isn't it normal to have a stuffy nose and not be able to smell?

During the study, in most cases, the sense of smell will be restored once the nasal congestion symptoms disappear, because the loss of smell is simply the result of nasal obstruction, preventing odor molecules from reaching the olfactory receptors in the nasal cavity. In a small number of cases, however, the sense of smell is still impaired even after the nasal congestion symptoms disappear.

Therefore, researchers performed CT scans of the sinuses of newly crowned patients with a clear nose but olfactory disturbances and found that the olfactory part of the nose, the olfactory fissure, was blocked by swollen soft tissues and mucus, which is called "olfactory fissure syndrome", where odors cannot reach the nose even though the nasal cavity is clear. This is called "olfactory fissure".

At the same time, researchers have found another possible scenario: the virus destroys the supporting cells of the olfactory neurons and the immune response causes the area to swell, preventing the relevant factors from reaching the neurons to complete the response, resulting in a loss of smell.

Both of these conditions will heal when the immune system destroys the virus, but there are also cases where the loss of smell after infection cannot be cured.

Researchers believe that inflammation is the body's response to injury and that there is a release of chemicals that can destroy the relevant tissues and cause damage to olfactory neurons.

In either case, it is undeniable that it is caused by the New Coronavirus. As the first line of defense in the prevention and control of New Coronavirus, rapid nucleic acid testing for New Coronavirus is unshakable and fundamental! Accurate identification of the virus can help us to better prevent and control, and in scenarios where NCCV is present, such as fever clinics and airport customs, rapid search for traces of the virus is of paramount importance!

The Nucleic Acid Rapid Test is a powerful tool in these scenarios. The highly efficient amplification reagents with the portable amplification machine can shorten the amplification time to about 30 minutes, significantly improving the efficiency of nucleic acid testing. To help the epidemic prevention and control to add brick and mortar!