U.S., Nov. 19 -- ClinicalTrials.gov registry received information related to the study (NCT07232745) titled 'Mucosal and Systemic Immune Responses Induced by an Intranasal Influenza Live Attenuated Vaccine' on Nov. 14.

Brief Summary: This is a single-center, open-label, single-arm clinical trial designed to evaluate the mucosal and systemic immune responses induced by an intranasal influenza live attenuated vaccine, and to explore the correlation between the two. The study plans to recruit 60 healthy volunteers aged 14-17 years, with a male-to-female ratio of 1:1. Participants and their guardians must be able and willing to comply with the clinical trial protocol and provide informed consent. Eligible participants will receive a single 0.2...