KIF21A and Pitt-Hopkins syndrome: In one patient, CSF immunostaining overlapped with commercial KIF21A, an axonal kinesin implicated in congenital fibrosis of extraocular muscles and abnormal brain development.10 In that same patient, we validated autoantibodies against TCF4, a gene that has been associated with psychiatric disorders, including schizophrenia, and is responsible for the neurodevelopmental disorder Pitt-Hopkins syndrome.11 These data highlight the possibility of SARS-CoV-2 neuroinvasion and/or CNS autoimmunity in pediatric patients with COVID-19 and neuropsychiatric symptoms.