Safety of a Influenza Vaccine Produced Either in Mammalian Cell Culture or in Embryonated Hen Eggs in Adults and Elderly With and Without Underlying Medical Conditions, and Immunogenicity in a Subset of Subjects With Underlying Medical Conditions

Evaluation of the safety of Trivalent Subunit Influenza Vaccine Produced either in Mammalian Cell Culture or in embryonated Hen Eggs in subjects 18 years of age and above with and without underlying medical conditions and evaluation of the immunogenicity in a subset of subjects with underlying medical conditions, compared to an egg-based vaccine in a post marketing setting.