What are the possible known adverse responses following influenza immunisation?
Influenza vaccine is well tolerated; however some people have side effects following vaccination. These can include systemic symptoms such as fever, malaise and myalgia, and can occur in around 1% of adults.8These symptoms are also more likely in children who have not previously been exposed to the vaccine or virus..8Local reactions, including redness and induration at the injection site, may persist for one to two days in 10–64% of recipients, but these effects are usually mild..
