Is It Advisable To Play Sports On Being Diagnosed Of Mono In Children?

My teen daughter came home yesterday, Monday 3/2/15 from school, she was very concerned about one of the students in her class having mono, this student was diagnosed Friday 2/27/15. My daughter has basketball & softball with her, where they had played in tournament together on Sat. 2/28/15.... If she has mono should she be participating in school or sports?? Our concern is spreading it!!