COLUMBUS, Ohio (WTVN) -- The central Ohio mumps outbreak is now up to 153 cases in Franklin and Delaware counties. To date, 100 cases have been linked to The Ohio State University outbreak.

Victims range in age from 9 months to 69 years old.

Columbus Public Health spokesman Jose Rodriguez says they've seen six cases where swollen testicles have been a complication. That can lead to sterility. One of the cases has led to deafness. Overall, 6 people have been hospitalized.

The cases have been spreading to areas outside Franklin County, mostly through connections with Ohio State University. 121 cases have been reported in Columbus, 14 in Franklin County, 12 in Delaware County, and 1 case each in Athens, Belmont, Fairfield, Hamilton, Licking, and Pickaway County.

Rodriguez says the other concern is that the latest case was reported on April 3. He says that's likely a sign that more cases are to come.