Study of Different Formulations of an Intramuscular A/H5N1 Inactivated, Split Virion Influenza Adjuvanted Vaccine

This is a Phase I, observer-blinded, randomized, controlled multicenter, dose-finding study in adult subjects. All vaccines will be administered as a two-dose schedule in (H5N1) immunologically-naïve adults. Immunogenicity and safety will be evaluated after each injection.