A dozen students in Montgomery County are showing signs of pertussis, commonly known as "whooping cough," and three cases have been confirmed.
Montgomery County Health and Human Services spokesperson Mary Anderson says the highly contagious illness begins with cold-like symptoms, but is accompanied by a severe, lingering cough. She says if parents notice these symptoms in their children, they should take them to their doctor to be treated with antibiotics.
"Get them out of the school population or keep them away from younger children and infants in their own family," Anderson says.
Anderson says 200 Montgomery County children were exposed to whooping cough at a Pennsylvania summer camp, which sent letters home to parents warning them about the risk.