This is an observational safety study of a prophylactic use of Flu Egg Derived Adjuvanted Swine Origin A(H1N1) Vaccine in subjects 6 months of age and older. Subjects may receive either 1 or 2 doses: children and elderly will receive 2 doses and adults will receive either 1 or 2 doses.

Inclusion Criteria:

• Subject's age in accordance with the approved product label of the country where the study is conducted
• Subjects will be vaccinated with Focetria®, independently of this study.
• Subjects or parent/guardian willing to provide informed consent prior to vaccination administration and complete all of the study, including follow-up contact

Exclusion Criteria:

• Received any prior H1N1 vaccination

Population of children, adolescents, adults and elderly