Woman and Man
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Extract
• To demonstrate that the ID investigational vaccine is at least as immunogenic as the IM reference vaccine in terms of geometric mean titer (GMT) after vaccination. • If non-inferiority is demonstrated, to demonstrate that the ID investigational vaccine induces a better immunogenicity than the IM reference vaccine in terms of seroprotection rate after vaccination.
Inclusion criteria
- Vaccination of adults subjects aged 50 to 59 years with inactivated, split-virion influenza vaccine administered by the intradermal route using Vaxigrip® as IM reference vaccine