The staff member, who has not been named, is being treated at an area hospital.
School officials say the employee had been in contact with about a dozen students and close to 20 staff members. Those people have been contacted and advised to watch for symptoms.
""People that have had fairly close and intimate contact with the person in the last two weeks would recieve antibiotics prophylaxis," said Dr. G. Richard Olds with the UC Riverside School of Medicine.
Symptoms include high fever, headache, stiff neck, rash, nausea and confusion. Anyone with these symptoms should contact a doctor immediately.
This is the fifth diagnosis of meningitis with the UC system in recent months. Four students were diagnosed with the bacterial illness last month at UC Santa Barbara.One student had to have both of his lower legs amputated.
In another recent case, a total of seven students came down with meningitis at Princeton University, which is in the process of vaccinating all students on campus.