Are there any side effects from influenza immunisation?
Immunisation against the influenza virus usually causes no problems. You may have a temporary mild soreness at the injection site. Sometimes, it can cause a mild fever and slight muscle aches for a day or so. This soon settles and does not lead to flu or other problems.
Serious reactions have been reported but are rare. For example, a severe allergic response, inflammation of nerves, and inflammation of the brain are rare reactions to the vaccine.
Who should not have the influenza immunisation?
The following groups of people should also not be immunised:
* If you are have a severe allergy to eggs (as the vaccine is made in hens' eggs).
* If you have had a previous allergic reaction to an influenza virus vaccine.
* If you have had a previous severe allergic reaction to neomycin, kanamycin, gentamicin, polymyxin B or thiomersal as some influenza virus vaccines may contain these in trace amounts.
The influenza vaccine can be given at the same time as other vaccines; it is often given at the same time as the pneumonia vaccine. It is also safe to give if you are either pregnant or breast feeding.
© EMIS and PiP 2008 Reviewed: 22 Oct 2008
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