Pediatric Autoimmune Neuropsychiatric Disorders Associated With Streptococcal Infection, or, because every disease needs an acronym, Pandas, brought on by the antibodies created to fight strep throat. http://www.nytimes.com/2005/05/22/magazine/22OCD.html?th&emc=th (NYT requires free registration) http://intramural.nimh.nih.gov/research/pdn/web.htm (The NYT article raises the question of prophylactic antibiotics. The ethics of this I think also relates to question of prophylactic antipsychotics (pre-symptomatic, "likely to become" interventions. S.) People Who experience mood swings, fear, voices and visions: each other on the internet www.peoplewho.org