Tolerability and Immunogenicity Study of FLUVAL P H1N1 Flu Vaccine of Omninvest in Children and Adolescents

Inclusion Criteria: * Children aged 3 to 12 years, adolescents aged 12 to 18 years, both sexes; * Are in good health (as determined by vital signs and existing medical condition) or are in stable medical condition. Subjects will not be excluded with known adequately treated clinically significant organ or systemic diseases (e.g. asthma or diabetes)m such that, in the opinion of the investigator, the significance of the disease will not compromise the subject's participation in the study. * Female volunteers of childbearing potential with a negative result from the urine pregnancy test prior to vaccination who agrees to use an acceptable contraception method (includes implants, injectibles, combined oral contraceptives, effective intrauterine devices /IUDs/, sexual abstinence, or a vasectomized partner) or abstinence throughout the trial and not become pregnant for the duration of the study. * Capability of adolescent participants aged 12 to 18 years and the legitimate representative of all volunteers to understand and comply with planned study procedures; * Absence of existence of any exclusion criteria. Exclusion Criteria: * Pregnancy or breast feeding or positive urine pregnancy test at baseline prior to vaccination; * Known allergy to eggs or other components of the vaccine (in particular mercury); * History of Guillain-Barré syndrome; * Active neoplasm (i.e. requiring any form of anti-neoplastic therapy); * Immunosuppressive therapy in the preceding 36 months; * Concom…