Infections can trigger psychiatric symptoms in children 

Common infections, such as strep, influenza, upper respiratory infections and mono, can trigger neurologic (i.e., tics) and psychiatric symptoms in children and adolescents. Patients are often misdiagnosed with a psychiatric illness when, in fact, they have a treatable autoimmune disorder.
PANS (pediatric acute-onset neuropsychiatric syndrome) and PANDAS (pediatric autoimmune neuropsychiatric disorder associated with strep infections). PANS and PANDAS are a type of autoimmune basal ganglia encephalitis.
Learn more: moleculeralabs.com