Allegheny County still had no confirmed measles cases among its residents as of Sept. 28, even as Pennsylvania's outbreak reached 903 cases across 39 counties. Outbreaks in Jefferson, Mercer, and Indiana counties, along with a handful of cases in Armstrong and Westmoreland counties, now sit north and east of Pittsburgh.
Schools are responding before a local case appears. Pittsburgh Public Schools will host measles vaccination clinics through November, and county health officials have been preparing school nurses for possible exposures, WESA reported.
For parents, the question has shifted from whether measles is in Pennsylvania to whether their child's classroom is ready. That depends heavily on vaccination rates at individual schools, and many Allegheny County kindergarten classes fall short.
Zero Resident Cases Does Not Mean Zero Exposure
The Pennsylvania Department of Health's latest measles update lists 903 cumulative cases, 176 hospitalizations, and four measles-associated deaths this year. Only four cases, less than 1%, occurred in vaccinated people. Thirteen new cases were added between Sept. 25 and Sept. 28, a slower pace than the 55 reported between Sept. 23 and Sept. 25.
Lancaster County, home to one of the state's major Amish settlements, still accounts for the largest share of cases. But cases have spread west over the summer, and several counties now reporting them border Allegheny County or sit within an hour's drive.
Allegheny County has already had a close call. MedicalDaily previously reported that measles reached a Pittsburgh hospital in August, when an unvaccinated patient from outside the county sought care at UPMC Children's Hospital of Pittsburgh. Other patients were exposed, but no resident cases followed.
The state says measles spreads through the air and can linger in a room for up to two hours after an infected person leaves. Symptoms can begin 7 to 21 days after exposure, and people can spread the virus starting four days before the rash appears. That is why a county with no cases can still see an exposure in a store, a clinic, or a school gym on any given day.
"We spoke with school nurses about this at the end of last year and at the beginning of this year," Jen Fiddner, the county health department's infectious disease epidemiology program manager, told WESA.
Kindergarten Classrooms Are the Weak Point
WESA found that one in three Allegheny County kindergarteners attends a school below the 95% vaccination level needed to limit measles spread. Statewide, about 6% of Pennsylvania kindergarteners were exempt from one or more vaccines last school year, higher than the national kindergarten exemption rate of 4.2%.
Pennsylvania allows exemptions for medical reasons and for religious beliefs or a strong moral or ethical conviction, and districts largely vet them. "A good school district policy would be one in which you are really vetting the vaccination rates of your students," said Amesh Adalja, a Pittsburgh-based infectious disease physician and senior scholar at the Johns Hopkins Center for Health Security. Several local superintendents declined WESA's interview requests.
"Pittsburgh Public Schools is taking a proactive approach to student health and measles prevention by bringing immunization services directly to our students," district spokesperson Ebony Pugh said.
The state health department met with nearly 1,000 school nurses over the summer. If an exposure occurs, schools have been told to review attendance records, bus routes, and extracurricular activities to find everyone who may have crossed paths with the patient.
The children at greatest risk are those who are unvaccinated or not fully vaccinated, infants too young for their first dose, and students with weakened immune systems who cannot be vaccinated. Nearly 20% of people who get measles are hospitalized, according to the state, a reminder that this is not a mild childhood rash for everyone.
Steps Pittsburgh Parents Can Take This Week
Two doses of the MMR vaccine are about 97% effective at preventing measles. Parents who are unsure of their child's status can check with their pediatrician or request immunization records online. Adults with only one documented dose, or no records, should ask a clinician or pharmacist about vaccination.
School staff born before the vaccine era may already be protected by past infection, but staff who are unsure of their immunity should check with a clinician.
Early symptoms include fever, cough, runny nose, and red, watery eyes, followed by a rash that starts on the head and spreads downward. Families who suspect measles should call a doctor before visiting so the office can prevent spread, or call the state hotline at 877-PA-HEALTH. Trouble breathing, severe drowsiness, or seizures need emergency care.
The state updates its measles figures several times a week. MedicalDaily will track whether a resident case is confirmed in Allegheny County and whether school clinics raise local coverage, the two developments most likely to change the risk for Pittsburgh families.
Key Questions Answered
Does Allegheny County have measles cases?
No cases among county residents had been confirmed as of Sept. 28. An out-of-county patient exposed others at a Pittsburgh hospital in August.
How big is Pennsylvania's outbreak?
The state reported 903 cases in 39 counties, 176 hospitalizations, and four measles-associated deaths as of Sept. 28.
Which nearby counties have cases?
WESA reported outbreaks in Jefferson, Mercer, and Indiana counties and a handful of cases in Armstrong and Westmoreland counties.
Where can Pittsburgh students get vaccinated?
Pittsburgh Public Schools is holding vaccination clinics through November. Pediatricians, pharmacies, and health centers also offer the MMR vaccine.
How can I find my child's vaccine records?
Ask your pediatrician or request records through Pennsylvania's online immunization records service.
What should I do if my child develops symptoms?
Call your doctor before visiting, or call 877-PA-HEALTH. Seek emergency care for breathing trouble or seizures.
Published by Medicaldaily.com
