Safety and Immunogenicity of Two Doses, Administered Three Weeks Apart, of Two(Surface Antigen Adjuvanted With MF59C.1) Influenza Vaccines in Non-Elderly Adult and Elderly Subjects

Inclusion Criteria: * Male and female volunteers 18 years of age or older Exclusion Criteria: * any auto-immune disease or other serious acute, chronic or progressive disease * hypersensitivity to eggs, chicken protein, chicken feathers, influenza viral protein, neomycin or polymyxin or any other component of the vaccine. * history of neurological symptoms or signs, or anaphylactic shock following administration of any vaccine. * within the past 7 days, they have experienced: any acute disease, infections requiring systemic antibiotic or antiviral therapy.