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First received: January 06, 2023

Clinical Trial: Study on a Live-attenuated Respiratory Syncytial Virus Vaccine for Assessment of Safety, Transmissibility, and Genetic Stability of the Vaccine Virus Among Close Contacts in Infants and Toddlers 6 to < 24 Months of Age in Puerto Rico (USA)

Study Status: Completed

Recruit Status: RECRUITING

Condition: Respiratory Syncytial Virus Infection

Study Type: INTERVENTIONAL


Official Title: Phase II, Randomized, Observer-blind, Placebo-controlled, Multi-center Study of a Live Attenuated Respiratory Syncytial Virus Vaccine to Assess the Vaccine Virus' Transmissibility in Household or

Brief Summary: The primary purpose of the study is to assess the shedding, transmission, and genetic stability of the live-attenuated RSVt vaccine after each intranasal vaccination (56 days apart) in infants and toddlers 6 to < 24 months of age.

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