Frequency of vaccine-related reactogenicity events During inpatient stage [clinicaltrials_resource:bbc432e3b27b025941f5a385b84c23f1]

Participants will receive 0.5 mL of vaccine intranasally via an Accuspray device (0.25 mL in each nostril)

Frequency of vaccine-related reactogenicity events During inpatient stage [clinicaltrials_resource:bbc432e3b27b025941f5a385b84c23f1]

Participants will receive 0.5 mL of vaccine intranasally via an Accuspray device (0.25 mL in each nostril)