A Post-Marketing, Observational, Comparative Safety Study of the Novartis Pandemic Influenza A (H1N1) Vaccine(s) in Pregnant Women Versus Non-Vaccinated Pregnant Women

The primary objective of this observational, comparative safety study is to evaluate the safety of the Novartis Pandemic Influenza A (H1N1) vaccine in pregnant women and their off spring, followed for up to 3 months of age as compared to pregnant women who have not received the Novartis Pandemic Influenza A (H1N1) vaccine. This study will be conducted at investigative sites within the Netherlands, Italy, and Argentina.