Could swine flu vaccine cause narcolepsy?

Could swine flu vaccine cause narcolepsy? Scientists probe link between drug and increase in cases


Swine flu vaccine may have been
responsible for a sudden increase in cases of narcolepsy among
schoolchildren in Finland, a study has found.
The sleep disorder is characterised by periods of extreme drowsiness, sudden naps, and paralysis attacks.
Scientists spotted a sudden increase in narcolepsy rates among Finnish children early in 2010.






Side effect: Scientists in Finland believe a sudden rise in narcolepsy rates among children may be due to the swine flu vaccineResearch showed it was associated with the Pandemrix vaccine, given to children to protect them against H1N1 swine flu.

One study found that the incidence rate
of narcolepsy among children and teenagers under the age of 17 shot up
17-fold after the vaccinations.

In contrast, the incidence rate for adults over 20 was unchanged.

The study compared narcolepsy rates between 2002 and 2009, and 2010.

During the first period, the rate for
children was 0.31 per 100,000 individuals. After swine flu vaccination,
it rose to 5.3 per 100,000.

A further study involving the same
researchers, led by Dr Markku Partinen from the Helsinki Sleep Clinic,
collected narcolepsy and vaccination data for children born between
January 1991 and December 2005.
It found that narcolepsy incidence for vaccinated individuals was 13 times higher than for those who were unvaccinated.






Research: The study found that
narcolepsy incidence for individuals vaccinated with Pandemrix was 13
times higher than for those who were unvaccinated.

Both studies appear in the online journal Public Library of Science ONE.

The researchers concluded: 'We consider
it likely that Pandemrix vaccination contributed, perhaps together
with other environmental factors, to this increase in genetically
susceptible children.'
The scientists suspect the vaccine may have contributed to an auto-immune effect linked to narcolepsy.


Source:-

http://www.dailymail.co.uk/health/article-2121781/Could-swine-flu-vaccine-cause-narcolepsy-Scientists-probe-link-drug-increase-cases.html