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Strep throat can trigger bizarre behavioral disorders in kids

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Kids' strep complications
Tantrums, OCD triggered by strep throat 01:58

NEW YORK  It's that time of year again. Not the holidays, but strep throat season. It's a common and painful infection for young kids that's usually cured by antibiotics. But for a few children, strep can trigger bizarre behavioral disorders such as severe tantrums, obsessive-compulsive disorder (OCD), and even tics.

It's a rare complication caused by an immune system that attacks the strep bacteria and the child's brain. 

Saul and Bonnie Markowitz told CBS New York that their world changed forever in February 2007 when their son went from being happy-go-lucky to a totally different kid seemingly overnight.

"It was almost psychotic," Bonnie said.

Their son Brandon was 5 and a half when he suddenly changed, showing tantrums that couldn't be controlled and debilitating OCD.

Brandon Markowitz  CBS New York

"One day he's doing his thing really happy and wanting to go out and do his thing, and suddenly the next day he wakes up and we aren't sure what's going on," Saul said.

Doctors say it's because of a strep infection Brandon had that developed into a complication called PANDAS, which stands for Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infections.

"What that basically means is a child gets an infection and the antibodies to that infection end up attacking the brain instead of the germs," PANDAS expert Dr. Elizabeth Spaar told the station.

A new documentary called "My Kid is Not Crazy" tells the stories of several families whose children suffered violent outbursts, tics, and tantrums from PANDAS.

Even though PANDAS is estimated to affect one in 200 children, the condition is often misdiagnosed. Antibiotics are the standard of treatment.

"For the kids where it isn't caught early and misdiagnosed, there can be lifelong effects from it, unfortunately," Spaar said.

Brandon's case was caught early, and his parents say he's doing well thanks to even more advanced treatments like IVIg, or intravenous immunoglobulin, where the immune system is given a boost with healthy donor antibodies.

While many children have tantrums, OCD, and tics, what's distinctive about PANDAS is the sudden and dramatic onset of the symptoms in a closely-related time frame to a strep infection.

"Patients with PANDAS have a very sudden onset or worsening of their symptoms, followed by a slow, gradual improvement. If they get another strep infection, their symptoms suddenly worsen again," according to the National Institute of Mental Health.

While most children get better with antibiotics, symptoms can take weeks to go away and many kids experience relapses.

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