DOVER (March 4, 2020) – The Delaware Division of Public Health (DPH) is investigating an outbreak of mumps cases among school-age children in New Castle County. As of March 3, 2020, DPH had identified nine cases of mumps as part of this outbreak, including seven confirmed cases and two probable cases. The confirmed cases involve five individuals at William Penn High School, one individual at George Read Middle School, both within the Colonial School District; and one individual at St. Georges Technical High School within the New Castle County Vo-Tech School District. No additional information about those individuals will be provided to protect personal health information.

 DPH has been coordinating closely with the impacted schools and school districts since cases were first identified to provide guidance for limiting the spread of illness and to identify any other potential cases. The schools notified their communities of the positive cases and potential exposure to mumps, and provided recommended guidance to families.

DPH advises any student or any member of the household who has symptoms or develops symptoms should be kept at home. In addition, it is recommended that parents of children who may have been exposed to mumps contact their child’s primary care provider. Children with suspected or confirmed mumps should stay home for five days after the onset of parotitis (gland swelling), or as directed by their primary care provider.  

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