Doctors at the Dent Neurologic Institute say the LeRoy student's Tourette-like symptoms are being caused by a psychological disorder called Conversion Disorder. But some parents don't trust that diagnosis.
The number of students has now grown to 15, all girls one boy.
"I haven't had a chance to really interview the girls to hear the full story but it seems to me their symptoms are quite similar to the syndrome we P.A.N.D.A.s," said Dr. Rosario Trifiletti an expert in child neurology based in Rockland, New Jersey.
P.A.N.D.A.s is short for Pediatric Autoimmune Neuropsychiatric Disorder it can be triggered by a strep infection and instead of the patient developing a fever their body has a different reaction.
Jim Dupont's 17 year old daughter is one of the Leroy students who is sick. He is anxious to have his daughter tested by doctor Trifiletti this weekend but he also thinks environmental waste could be the culprit.
Erin Brockovich has agreed to conduct more testing at the site. In an interview with USA Today she says the State's testing of air and mold wasn't enough and she plans to test the soil and water.
Dr. Trifiletti is based in Rockland, NJ, he'll be here Sunday to conduct extensive testing on the affected students. He says he could have answers within the next 10 days.