Tics, OCD and Streptococcal Infection (PANDAS)

Forty matched pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) case-control pairs were prospectively evaluated clinically and with testing for group A b-hemolytic streptococcus for an average of 2 years, in a study at University of Rochester School of Medicine, New York; and WHO Streptococcal Reference Laboratory, Minneapolis, MN.