3 ms·
The mucosal immune system in the respiratory tract is the first line of defense against covid. An interstitial injection does not train the mucosal immune syste
by officialjunk 4y ago
The mucosal immune system in the respiratory tract is the first line of defense against covid. An interstitial injection does not train the mucosal immune system, while a nasal vaccine does. To prevent any infection, the mucosal immune system needs to be primed.