A central Ohio health district is investigating a probable cluster of mumps cases after two cases were reported in one school building, in addition to 25 more cases in the county.
A Delaware General Health District spokeswoman said Friday that students who haven't been vaccinated for mumps will be excluded from attending the Delaware County school where the cases were reported. Spokeswoman Traci Whittaker says the district isn't identifying the school. Students who haven't been properly vaccinated or have weakened immune systems must remain out of school at least 25 days or until they're vaccinated. Whittaker says the Delaware County outbreak is related to one in Franklin County, with 244 total cases of the contagious viral illness confirmed in both counties. That includes 151 cases linked to Ohio State University.