['Autism spectrum disorder (ASD) is a group of central nervous system disorders lacking a definite etiology. The aim of the present study was to compare the exposure rate and titer of antibodies to Varicella Zoster Virus (VZV) in children with ASD and in healthy controls.', 'We enrolled 54 children with ASD and 46 control individuals.', 'The exposure rate and titer of anti-VZV antibodies were significantly higher in children with ASD compared to controls (59% vs. 39% and 694 mIU/ml vs. 94 mIU/ml, respectively).'] Is exposure to Varicella Zoster Virus higher in children with autism spectrum disorder than in healthy controls . Results from a case-control study?