How safe is the H1N1 flu vaccine?

Clinical trials from several countries around the world have shown the H1N1 flu vaccine to safe and effective for protecting yourself against the H1N1 flu virus. The H1N1 flu vaccine is produced in a similar manner to seasonal flu vaccines, which have been used safely and effectively in Canada for many years.

The H1N1 flu vaccine contains an adjuvant, which is an ingredient made of naturally occurring oil, water and vitamin E that boosts the body's immune response and increases the vaccine effectiveness. This same adjuvant was tested in 45, 000 people and did not identify any safety concerns for healthy adults or children. However, the adjuvant was not tested widely in children under three years and pregnant women.