Paediatric Acute onset Neuropsychiatric Syndrome: Exploratory study finds no evidence of HLA class II association but high rate of autoimmunity in first‐degree relatives

Elisabeth Fernell, Mikael Sundin, Anders Fasth, Lisa Dinkler, Martyna Galazka, Christopher Gillberg, Mats Johnson Acta Paediatr. DOI: 10.1111/apa.15805

Conclusion
No HLA allele association such as seen in children with narcolepsy after H1N1 immunisation could be confirmed in this group of children with PANS. However, more than half the group had a first‐degree relative with a diagnosed autoimmune disease.

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