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Anti-swine flu vaccination linked to increased risk of narcolepsy in young adults

Date:
January 21, 2014
Source:
Wiley
Summary:
Pandemrix is an influenza vaccination, created in 2009 to combat H1N1, known as Swine Flu. Now, a team of clinicians testing the vaccine for links to immune-related or neurological diseases have linked Pandemrix to an increased risk of narcolepsy in young adults.
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Pandemrix is an influenza vaccination, created in 2009 to combat H1N1, known as Swine Flu. Now, a team of Swedish clinicians testing the vaccine for links to immune-related or neurological diseases have linked Pandemrix to an increased risk of narcolepsy in young adults.

Using a population-based prospective cohort study, the team analyzed data from regional vaccination registries and national health registries, covering seven healthcare regions and 61% of the Swedish population.

While the team did not identify any link to a large number of immune-related or neurological diseases, they did confirm an increased risk in diagnosis of narcolepsy in individuals younger than 20 years of age, and observed a trend towards an increased risk amongst young adults between 21 and 30.

"The follow-up of Pandemrix vaccinations in a large registry based study in Sweden confirms an increased risk of narcolepsy in children and adolescents, while also providing reassuring results for a large number of other neurological and immune related diseases," said Dr. I. Persson from the Karolinska Institutet, Stockholm.


Story Source:

The above story is based on materials provided by Wiley. Note: Materials may be edited for content and length.


Journal Reference:

  1. I. Persson, F. Granath, J. Askling, J. F. Ludvigsson, T. Olsson, N. Feltelius. Risks of neurological and immune-related diseases, including narcolepsy, after vaccination with Pandemrix: a population- and registry-based cohort study with over 2 years of follow-up. Journal of Internal Medicine, January 2014

Cite This Page:

Wiley. "Anti-swine flu vaccination linked to increased risk of narcolepsy in young adults." ScienceDaily. ScienceDaily, 21 January 2014. <www.sciencedaily.com/releases/2014/01/140121104156.htm>.
Wiley. (2014, January 21). Anti-swine flu vaccination linked to increased risk of narcolepsy in young adults. ScienceDaily. Retrieved May 23, 2015 from www.sciencedaily.com/releases/2014/01/140121104156.htm
Wiley. "Anti-swine flu vaccination linked to increased risk of narcolepsy in young adults." ScienceDaily. www.sciencedaily.com/releases/2014/01/140121104156.htm (accessed May 23, 2015).

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