The student, who attended classes the week of March 31, was diagnosed on Friday, according to a statement from the University Health Services. The infected student is in isolation.
Berkeley city officials say this second case is unrelated to February's, where a UC student was diagnosed with measles and infected two family members.
Campus officials are working with the city of Berkeley's public health department to notify any residents who may have been exposed to the disease.
Anyone who believes they may have been exposed is urged to review their immunization records and get the measles vaccine as soon as possible if they have not already.
Symptoms of the disease can surface one to three weeks after exposure and include high fever, red, watery eyes, coughing and runny nose. Those infected with measles usually develop a rash on the face that spreads to the rest of the body, typically lasting five to six days, according to health officials.
"If you've been exposed to measles and are not immune, but if you get a vaccine within 72 hours of when you were exposed, then you can be protected, eventhough the vaccine is after the fact, it will keep you from getting sick," Berkeley public health spokesperson Janet Berreman, M.D., said.
More information about the illness can be found at www.cdc.gov/measles.
ABC7 News contributed to this story.