<prompt> Most common infection in PANDAS:-Streptococcus pyogenesStaphlococcus aureusStreptococcus pneumoniaeMycobacterium tuberculosis  <response>: PANDAS Pediatric Autoimmune Neuropsychiatric Disorders Associated With Streptococcus pyogenes A group of neuropsychiatric disorderseg obsessive-compulsive disorder, tic disorder, and tourette syndrome for which a possible relationship with GAS infection has been hypothesized. This subset of patients may produce autoimmune antibodies in response to a GAS infection that cross react with brain tissue. 