Complex sentence: Reduced CSF hypocretin levels were found in young vaccinated children the first year after Pandemrix ® vaccination in Norway and the minimum incidence of narcolepsy was 10 of 100,000 individuals per year.
Split into simpler sentences: Reduced CSF hypocretin levels were found in young vaccinated children the first year after Pandemrix ® vaccination in Norway. The minimum incidence of narcolepsy was 10 of 100,000 individuals per year.