If a child is detected to have head lice at school: Teachers must notify the school nurse and project manager the same day. The school nurse will contact the child's parents so treatment can begin that day. Parents must submit a note to the nurse once treatment has started for the child to return to class. The project manager will email parents of students in the affected class so they can check their children at home. Parents must provide immediate treatment if lice is found and monitor their child regularly to prevent re-infestation.