Katie Kazoo, Switcheroo #4: Girls Don't Have Cooties by Nancy E. Krulik (Paperback)

Katie has plans to go to Suzanne's all-girl sleepover party, but Jeremy wants her to ride the hot new rollercoaster. Annoyed, Jeremy and the other boys from Class 3A decide that all girls have cooties. When Katie finds herself in Jeremy's shoes-literally-she tries to reunite the boys and girls. Will Katie's plan work? Or will it just be one big mess?