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| English: Avian flu vaccine development by reverse genetics technique. Français: Diagramme en anglais montrant sommairement les étapes menant à la création d'un vaccin contre la grippe aviaire par la génétique inverse. (Photo credit: Wikipedia) |
Influenza (live) vaccine side-effects
What are the risks from LAIV?
A vaccine, like any medicine, could possibly cause serious problems, such as severe allergic reactions. The risk of a vaccine causing serious harm, or death, is extremely small.Live influenza vaccine viruses very rarely spread from person to person. Even if they do, they are not likely to cause illness.
LAIV is made from weakened virus and does not cause influenza. The vaccine can cause mild symptoms in people who get it (see below).
Mild Problems
Some children and adolescents 2-17 years of age have reported:
- runny nose, nasal congestion or cough
- headache and muscle aches
- fever
- wheezing
- abdominal pain or occasional vomiting or diarrhea
- runny nose or nasal congestion
- sore throat
- cough, chills, tiredness/weakness
- headache
- Life-threatening allergic reactions from vaccines are very rare. If they do occur, it is usually within a few minutes to a few hours after the vaccination.
- If rare reactions occur with any product, they may not be identified until thousands, or millions, of people have used it. Millions of doses of LAIV have been distributed since it was licensed, and the vaccine has not been associated with any serious problems.
This information was taken directly from the LAIV VIS
[PDF - 275 KB] (This information taken from Live Influenza VIS dated 7/2/12. If the actual VIS is more recent than this date, the information on this page needs to be updated.)
In others words: the adverse effects of this vaccine is a flu-like syndrome.
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