Study to demonstrate the lot-to-lot consistency and to evaluate the safety of an adjuvanted influenza vaccine candidate

A male or female age 60 years or older at the time of the vaccination.

• Subjects who the investigator believes can and will comply with the requirements of the protocol
• Written informed consent obtained from the subject.
• Free of an acute aggravation of the health status as established by clinical examination before entering into the study.

Use of any investigational or non-registered product (drug or vaccine) within 30 days preceding the administration of the study vaccine, or planned use during the study period.

• Acute clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
• Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within three months prior to the first vaccine dose.
• Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination
• Administration of immunoglobulins and/or any blood products within the 3 months preceding the first dose of study vaccine or planned administration during the study period.
• Administration of other licensed vaccines within 2 weeks (for inactivated vaccines) or 4 weeks (for live vaccines) prior to enrolment in this study. Planned administration of a vaccine not foreseen by the study protocol up to 30 days after vaccination.
• History of hypersensitivity to a previous dose of influenza vaccine.
• History of confirmed influenza infection within the last 12 months.
• History of allergy or reactions likely to be exacerbated by any component of the vaccine(s)
• Acute disease at the time of enrolment