Trial to Evaluate the Safety and the Immunogenicity of GSK Biologicals' Influenza Vaccine GSK2186877A in Healthy Children

Inclusion Criteria

All subjects must satisfy ALL the following criteria at study entry:

• Subjects who the investigator believes that parent(s)/Legally Acceptable Representative(s) [LAR(s)] can and will comply with the requirements of the protocol.
• Children, male or female between, and including, 6 and 35 months of age at the time of the first vaccination.
• Written informed consent obtained from the parent(s)/LAR(s) of the subject.
• Healthy subjects as established by medical history and clinical examination before entering into the study.
• Age appropriate scheduled childhood vaccinations completed to the best of parent(s)/LAR(s) knowledge.

Exclusion Criteria

The following criteria should be checked at the time of study entry. If ANY exclusion criterion applies, the subject must not be included in the study:

• Child in care
• Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period.
• Prior receipt of any influenza vaccination (seasonal or pandemic) or planned administration during the study period.
• Planned administration of any vaccine 30 days prior and 30 days after any study vaccine administration.
• Chronic administration (defined as more than 14 days in total) of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose. For corticosteroids, this will mean prednisone >0.5 mg/kg of body weight, or equivalent. Inhaled and topical steroids are allowed.
• Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination (no laboratory testing required).
• A family history of congenital or hereditary immunodeficiency.
• Any known or suspected allergy to any constituent of influenza or routine paediatric vaccines, a history of severe adverse reaction to any previous vaccination; or a history of anaphylactic-type reaction to consumption of egg proteins.
• History of any neurological disorders or seizures (including febrile convulsion).
• Acute or chronic, clinically-significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by medical history or physical examination.
• Acute disease and/or fever at the time of enrolment:
• Fever is defined as temperature >= 37.5°C on oral, axillary or tympanic setting, or >=38.0°C on rectal setting.
• Subjects with a minor illness (such as mild diarrhoea, mild upper respiratory infection) without fever might be enrolled at the discretion of the investigator.
• Administration of immunoglobulins and/or any blood products within the 3 month preceding the first dose of study vaccine or planned administration during the study period.
• Any condition which, in the opinion of the investigator, render the subject unfit for participation in the study.