In land-based vertebrates, the olfactory system detects low concentrations of volatile ... The research, titled "Nasal immunity is an ancient arm of the mucosal immune system of vertebrates ...

"For children, especially those under 12 years old, their nasal mucosa is still developing, and inhaling impurities may weaken its functions. In addition, some substances may trigger allergies or ...

SARS-CoV-2 mRNA vaccination was found to provoke an immune response in the mucosal lining of the nasal cavity (1 Trusted Source SARS-CoV-2 mRNA Vaccination Induces an Intranasal Mucosal ...