Oxford Area High School in Chester County, Pennsylvania, closed on Friday, Oct. 9, following a confirmed measles case, with enhanced cleaning and vaccination verification protocols implemented as public health officials monitor the state’s largest measles outbreak in more than three decades.
The Oxford Area School District closed its high school on Friday, Oct. 9, after a confirmed measles case was found in the school community, according to a letter from Superintendent David Woods to families. The decision followed guidance from the Chester County Health Department (CCHD), which is leading contact tracing and verifying staff immunity to stop the spread.
School Closes After Measles Case
The closure required the district to audit and verify measles immunity records for all staff, as ordered by the CCHD. Out of an abundance of caution, enhanced cleaning and disinfection of the building has been completed as part of our ongoing commitment to maintaining a safe and healthy environment for students and staff,
Woods wrote in the letter, which was shared with families and posted on the school’s website.
Maintenance crews completed enhanced cleaning to address risks, while the CCHD informed individuals exposed to the infected person. The district said unvaccinated students or staff, or those unable to prove vaccination, would be excluded from school and must quarantine for 21 days after potential exposure.
Health Department Conducts Contact Tracing
The Chester County Health Department is managing the public health response, including identifying and notifying those exposed. According to the district’s letter, anyone who is not vaccinated for measles or can’t prove vaccination, you CAN NOT attend school or school functions and must be quarantined 21 days from school and all school functions.
Public health officials from the CCHD are tracing contacts, with direct messages to those with close exposure.
Vaccine Rules Enforce Quarantine
Measles spreads through air or contact, with symptoms including cough, fever, and a rash. The Centers for Disease Control and Prevention (CDC) advises two doses of the MMR vaccine for full protection. Officials stressed unvaccinated individuals face strict exclusion, in line with state and local rules.
Superintendent Woods stressed the district’s transparency, saying, “We understand that news like this may be concerning for families. The health and well-being of our students, staff and community are incredibly important to us, and we recognize that receiving this information can raise questions, concerns and uncertainty.”
Outbreak Sparks Regional Concern
Chester County accounts for 86 cases, the third-highest in the state, according to the Pennsylvania Department of Health. Lancaster County has the most cases, with over 400 reported.
Jeanne Franklin, director of the Chester County Health Department, said officials had worked with school nurses and superintendents before the school year due to measles risks.
The CCHD and Pennsylvania Department of Health update case numbers regularly, with the next report due Friday. Families are urged to check health department resources for the latest on cases, hospitalizations, and prevention.