Intranasal vaccines: forthcoming challenges.
The mucosal epithelium of the upper respiratory tract constitutes an effective physical barrier to many pathogens. Its mucosal-associated lymphoid tissue is of particular importance for the protection and integrity of mucosal surfaces and the body's interior. Understanding the factors that influence the induction and regulation of mucosal immune responses will facilitate the design of vaccines capable of eliciting the appropriate type of protective immune response.
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