Intranasal vaccines offer an alternative way of vaccine administration compared to traditional injections. These vaccines are sprayed into the nasal cavity instead of being injected into the muscle or skin. Delivery through the nasal route aims to induce protective immunity directly at the entry point of many respiratory pathogens.

How do Nasal Vaccine Work?

Intranasal vaccines work through the innate and adaptive immune responses in the nasal mucosa and upper respiratory tract. When administered into the nose, Nasal Vaccine antigen is presented to immune cells located in the nasal-associated lymphoid tissue (NALT). This early interaction triggers both humoral and cellular immune responses.

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