What Can Your Nose Do to Protect Against Illness? Plenty.
Briefly

The nose and upper airway are crucial in understanding possible infections as they serve as places for cells to learn and fight off infections, including generating antibodies for diseases like COVID-19.
Contrary to previous beliefs that adenoids only play a role in childhood, research shows they remain active in generating antibodies in participants of various ages, indicating a potential avenue for nasal vaccines.
Nasal vaccines could be more effective in building immunity compared to traditional systemic vaccination methods, potentially providing better protection against infections like COVID-19.
A study on a nasal vaccine at Washington University School of Medicine in St. Louis showed promising outcomes, suggesting nasal vaccines could help halt the spread of diseases like COVID-19.
Read at InsideHook
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