The Checkup - Why flu vaccine may cause narcolepsy

The Checkup - Why flu vaccine may cause narcolepsy: "By Rob Stein

Scientists think they have found a clue to why there may be an increased risk for the sleeping disorder narcolepsy among some people who got the H1N1 flu vaccine: The cases appear to have occurred among those carrying a gene that increases the risk for the rare disorder, which causes people to suddenly fall asleep, according to the World Health Organization.



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