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    Home > Adult Immunisation > Flu Vaccination > FAQ > Further Details

Further Details

September 2011

What did Pandemrix contain?

Pandemrix contained killed H1N1 (2009) influenza (swine flu) virus as well as thiomersal and an adjuvant.

 

What is an adjuvant?

Vaccine adjuvants are substances which enhance an immune response. The World Health Organization reviewed the safety of adjuvanted influenza vaccines in 2009 and reported that there were no significant concerns regarding using adjuvanted H1N1 vaccine.

The adjuvant used in Pandemrix is called AS03. This is not used in any other vaccines used in Ireland.

 

What is thiomersal?

Thiomersal is not contained in any other vaccines used in immunisation programmes in Ireland

Health Protection Surveillance Centre The Department of Health and Children Irish College Of General Practitioner