Risks of neurological and immune‐related diseases, including narcolepsy, after vaccination with <scp>P</scp>andemrix: a population‐ and registry‐based cohort study with over 2 years of follow‐up

Abstract

For a large number of selected neurological and immune-related diseases, we could neither confirm any causal association with Pandemrix nor refute entirely a small excess risk. We confirmed an increased risk for a diagnosis of narcolepsy in individuals ≤ 20 years of age and observed a trend towards an increased risk also amongst young adults between 21 and 30 years.