Pediatric Acute-onset Neuropsychiatric Syndrome (PANS) & Pediatric Acute-onset Neuropsychiatric Disorders Associated with Streptococcus (PANDAS) are terms used to describe a set of pediatric-onset neuropsychiatric disorders. These conditions characterized by the sudden onset of obsessive-compulsive disorder (OCD), tic disorders, or both, following an infection, often with streptococcal bacteria (Strep Throat). So