Study of Fluzone Vaccine Administered by Intradermal Route in Comparison With Standard Fluzone® in Adults

Inclusion Criteria : * Aged 18 to 64 years on the day of vaccination. * Informed consent form signed and dated. * Able to attend all scheduled visits and to comply with all trial procedures. * For women of child bearing potential, avoid becoming pregnant (use of an effective method of contraception or abstinence) for at least 4 weeks prior to vaccination, until at least 4 weeks after vaccination. Exclusion Criteria : * Known systemic hypersensitivity to any of the vaccine components or history of a life-threatening reaction to the trial vaccine or to a vaccine containing any of the same substances. * For a woman of child-bearing potential: known pregnancy or positive serum/urine pregnancy test. * Breast-feeding woman. * Participation in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure in the four weeks preceding the trial vaccination. * Planned participation in another clinical trial during the present trial period. * Known or suspected congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long-term systemic corticosteroids therapy * Chronic illness, at a stage that could interfere with trial conduct or completion, in the opinion of the investigator. * Current alcohol abuse or drug addiction that may interfere with the subject's ability to comply with trial procedures. * Receipt of blood or blood-derived products in the past 3 months that might interfere with the assessment of immune response. * Receipt of any vaccination in the 4 weeks preceding the trial vaccination. * Planned receipt of any vaccine in the 4 weeks following the trial vaccination. * Previous vaccination against influenza in the past 6 months with the trial vaccine or another vaccine. * Thrombocytopenia or bleeding disorder in the 3 weeks preceding inclusion. * Subject deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized without his/her consent. * Neoplastic disease or any hematologic malignancy, (except localized skin or prostate cancer that is stable at the time of vaccination in the absence of therapy, and subjects who have a history of neoplastic disease and who have been disease free for \>=5 years). * Personal or family history of Guillain-Barré Syndrome.