A 19-year-old sophomore male student at the University of Colorado at Boulder was diagnosed Tuesday with meningococcal disease and is recovering at his home. The student was evaluated and treated at Exempla Good Samaritan Hospital in Lafayette last Saturday for fever and body aches. He was initially diagnosed with an unspecified blood infection. However, later results of a blood test indicated the student had contracted meningococcal disease, which is characterized by fever, aches, chills and, in some cases, a rash.