On Monday, the Arkansas Department of Health increased the number of mumps cases under investigation in the state to 476, which is up from Friday's count of 427.
More than 30 schools across three school districts in northwest Arkansas have reported at least one case. ADH issued requirements for students with vaccination exemptions at schools where a student or teacher has become infected with the mumps. These children must remain out of school for at least 26 days or until the outbreak has ended.
The mumps are best known for painful, swollen salivary glands that cause puffy cheeks and swollen jaw.
To learn more about the mumps, click here.
More articles on infection control:
The next Zika? 4 viral contenders to watch
Hospital beds' antibiotic history can put future patients at risk for C. diff
Oklahoma mumps outbreak up to 70 cases