CHATTANOOGA, TN. (WDEF) -- What kid has never taken a PB&J sandwich to school?
Most have---but these days the peanut butter part of that sandwich can be a deadly health threat for some students.
The Athens public schools have now banned peanut butter in any form in the campus.
Violent allergic reactions to peanut products is not new---many kids have suffered with it their entire lives.
But there are more cases these days, and public schools have had to design special programs to deal with the health threat.
Athens, Tennessee schools have banned peanut products from school grounds.
ROBERT YOUNGER, III, M.D. THE ALLERGY ASTHMA GROUP "The frequency and percentage of children with life-threatening peanut allergy has logarithmically over the past two generations."
Cameron Johnson, a 10th grader at Dade County High School has had to avoid peanut products and shellfish his entire life.
TAMMY JOHNSON, CAMERON'S MOM "People just don't understand..you know, a piece of food can kill your child."
And Dade county schools have made the trip all the way with Cameron.
The cafeteria staff even calls the Johnson's if they have a question about what they are cooking that day.
TAMMY JOHNSON "They go above and beyond..he has benadryl in every class, because he may not make it to the office, because it can happen so fast."
LARRY JOHNSON, CAMERON'S DAD "Even at his age, he has to be very vigilant about reading labels and checking things ..he can't take anything for granted."
ROBERT YOUNGER, III, M.D. ALLERGIST "We know that approximately 300 to 400 children are lost each year to food induced anaphylacsis .
And half of those cases are due to peanuts."
Schools now keep medications on hand, just in case.
The national institute of health has studied the record on peanut allergies.
Dr. Younger says it determined that banning peanuts altogether in a school district is not in keeping with those guidelines.