Study to Evaluate the Safety of a Monovalent Vaccine of a New 6:2 Reassortant in Healthy Adults (AV024)

Inclusion Criteria: * 18-64 years of age (not yet reached their 65th birthday); * In good health; * Available by telephone; * Ability to understand and comply with the requirements of the protocol; and * Signed informed consent. Exclusion Criteria: * Any condition, other than age, for which the inactivated influenza vaccine is indicated, including: chronic disorders of the pulmonary or cardiovascular systems, including asthma; chronic metabolic diseases (including diabetes mellitus) renal dysfunction, or hemoglobinopathies which required regular medical follow-up or hospitalization during the proceeding year; * Acute febrile (\>100.0°F oral) illness or clinically significant respiratory illness within the 14 days prior to enrollment; * Hypersensitivity to egg or egg protein; * Signs or symptoms of any immunosuppressive or immune deficiency disease, including HIV infection, or ongoing immunosuppressive therapy; or an immunosuppressed individual living in the same household; * Participation in another investigational trial within one month prior to enrollment or expected enrollment in another investigational trial during this study; and * Any condition that in the opinion of the investigator, might interfere with the vaccine evaluation.