A newly discovered immune response inside the nose is suppressed by colder temperatures, offering evidence for why upper respiratory infections such as colds, flu, and COVID-19 are more common in cooler months. Scientists have discovered a previously unidentified immune response inside the nose t
A previously unidentified immune response inside the nose that fights off viruses responsible for upper respiratory infections has been discovered by researchers. It can help explain why upper respiratory infections are more common in cooler months of the year.
The 2018 study also showed that the EVs shuttle protective antibacterial proteins through the mucus from the front of the nose to the back of it along the airway, which then protects other cells against the bacteria before it gets too far into the body. “The more decoys, the more the EVs can mop up the viruses in the mucus before the viruses have a chance to bind to the nasal cells, which suppresses the infection,” said Dr. Huang.
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