Reply to the Letter to the Editor: "Importance of nasal secretions in the evaluation of mucosal immunity elicited by mRNA BNT162b2 COVID-19 vaccine" by Francavilla B et al.: Lack of a strong oral mucosal immune response: rethinking the route of COVID-19 vaccine boost administration?

回复 Francavilla B 等人的来信：“鼻分泌物在评估 mRNA BNT162b2 COVID-19 疫苗诱导的粘膜免疫中的重要性”：缺乏强烈的口腔粘膜免疫反应：重新思考 COVID-19 疫苗加强接种途径？