Butler Elementary School, Titus Elementary School, Tamanend Middle School, Tohickon Middle School, and Central Bucks South High School are closed. Superintendent of the Central Bucks School District John Kopicki said that he was informed by Dr. David Damsker, Director of the Bucks County Health Department, and Dr. Sharon Watkins, State Epidemiologist of the Pennsylvania Department of State Epidemiologist of the Pennsylvania Department of Health about the exposure.