Study of Swine-Origin A/H1N1 Influenza Non-Adjuvanted Vaccine in Healthy Adults in India

Inclusion Criteria : * 18 years of age and above on the day of inclusion * Provision of informed consent form signed by the participant. If the participant is illiterate, an independent witness is required to sign the consent form. * Participant able to attend all scheduled visits and comply with all trial procedures * For a female, if sexually active, use of an effective method of contraception or abstinence for at least 4 weeks prior to the first vaccination, until at least 4 weeks after the last vaccination. Exclusion Criteria : * Participation in another clinical trial investigating a vaccine, drug, medical device, or medical procedure in the 4 weeks preceding the trial vaccination * Planned participation in another clinical trial during the present trial period * Receipt of any vaccine in the 4 weeks preceding the trial vaccination * Planned receipt of any vaccine during the study period (except 6 months follow up) * Receipt of blood or blood-derived products in the past 3 months, which might interfere with assessment of the immune response * Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months) * Known seropositivity for human immunodeficiency virus, hepatitis B, or hepatitis C as reported by the participant /…