Association of Streptococcal Throat Infection With Mental Disorders Testing Key Aspects of the PANDAS Hypothesis in a Nationwide Study

Sonja Orlovska, Claus Høstrup Vestergaard, Bodil Hammer Bech, PhD
JAMA Psychiatry-2017

This large-scale study investigating key aspects of the PANDAS hypothesis found that individuals with a streptococcal throat infection had elevated risks of mental disorders, particularly OCD and tic disorders. However, nonstreptococcal throat infection was also associated with increased risks, although less than streptococcal infections for OCD and any mental disorder, which could also support important elements of the diagnostic concept of pediatric acute-onset neuropsychiatric syndrome.

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