At least three cases of the mumps have now been reported at Worthington Kilbourne High School. The school previously reported just one case amid the outbreak across central Ohio, which has grown to more than 360 cases.
In response to the cluster, Columbus Health officials say all students who are unvaccinated or under-vaccinated at the high school will be barred from the school effective immediately.
Meanwhile, health officials also say several people from the Columbus-area that contracted the mumps - but did not know they were incubating the virus - recently traveled to Mexico and became sick there, sparking fears the outbreak may have spread internationally.
The central Ohio mumps outbreak now has more than 60 percent of all cases nationwide.
State and local health officials are urging residents to make sure they're properly vaccinated with two doses of measles-mumps-rubella, known as MMR.
Local cases now include these complications:
- Severe pain
- Inflammation of the testicles (orchitis) in post pubescent males
- Inflammation of the ovaries (oophoritis) in post pubescent females