The World Health Organisation has warned that an influenza pandemic is inevitable. The avian influenza strain H5N1 is one of the leading candidates to cause the next influenza pandemic. Children are likely to be a special target group for vaccination; therefore, this study will test the safety and immunogenicity of an H5N1 pandemic influenza vaccine in healthy children.

Inclusion Criteria:

• Healthy children aged greater or equal to 6 months to less than 9 years
• Normal gestation period

Exclusion Criteria:

• History of clinically significant medical conditions
• History of Guillain Barre syndrome or active neurological disease