Safety and Immunogenicity of Preservative Free Inactivated Split Influenza Vaccine, Using the Strain Composition 2006/2007 in Non-Elderly Adult and Elderly Subjects

Inclusion Criteria: * Healthy adults aged \>18 years Exclusion Criteria: * serious chronic diseases or significant acute infections requiring systemic antibiotic treatment * history of any anaphylaxis, serious vaccine reactions * hypersensitivity against vaccine components * history of neurological symptoms or signs, or anaphylactic shock following administration of any vaccine * known or suspected impairment/alteration of immune function * more than one injection of influenza vaccine received or laboratory confirmed influenza disease * within last 6 months: influenza vaccination received