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The flu vaccine used during the 2009 pandemic may have led to a slight increase in cases of Guillain-Barré syndrome in Quebec, a new study from the province suggests.
The study, published Wednesday in the Journal of the American Medical Association, suggests that use of the vaccine may have led to a doubling of the rate of cases of the rare neurological condition.
Canada used adjuvanted flu vaccine for the first time during the 2009 pandemic.
But the authors of the article said that even with an increase in Guillain-Barré cases, the benefits of the vaccination probably outweighed the risk for Quebecers….
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