Pennsylvania has confirmed 1,286 measles cases across 42 counties so far in 2026, including 247 hospitalizations and five deaths, according to the latest data from the state Department of Health.
Two doses of the MMR vaccine provide about 97% protection against measles. People who have received both documented doses do not need another, according to the state health department. Adults who have received only one dose or cannot locate their vaccination records should consult a health care provider or pharmacist about whether they need another dose.
The department also recommends an early MMR dose for infants ages 6 to 11 months who live in or travel to counties identified on the state dashboard as having sustained community transmission. That dose does not replace the two routine doses given later in childhood.
Children ages 12 months and older who have not received an MMR dose should get one, followed by a second dose at least 28 days later.
Free MMR vaccines are available at any City of Philadelphia Health Center, even if you do not have health insurance. Contact the city call center at 215-685-2933 to make an appointment.
Local pharmacies, including CVS and Walmart, also offer no-cost MMR vaccinations.
Contracting measles while pregnant increases the risk of miscarriage, early labor, and low birth weight. Babies who contract measles before or during birth can also become very sick and are at risk for health complications later in life.
DOH issued a Health Alert Network notice outlining clinical guidance for health care providers treating pregnant women who become infected with measles and newborns with possible measles.
Getting vaccinated before becoming pregnant is the best way to prevent measles and newborn measles. The MMR vaccine should not be administered during pregnancy and pregnancy should be avoided for 28 days after receiving the MMR vaccine.
Postpartum mothers who are not immune to measles should receive the MMR vaccine to protect themselves and reduce the risk of exposing their infants. MMR vaccination is safe for breastfeeding mothers, health officials said, noting that family and household members who will live with, or care for, the infant are also encouraged to get vaccinated to provide a protective bubble around the infant and keep them safe until they are eligible to be vaccinated.
Pregnant people and infants who are not immune and have been exposed to measles may receive immunoglobulin within six days of exposure. The treatment can help prevent infection or reduce the risk of severe illness.
Health care providers must immediately report suspected measles cases involving pregnant patients or newborns to their local health department or the state Department of Health at 877-724-3258.
Pennsylvanians can stay up to date on confirmed measles cases and vaccination efforts at pa.gov/measles.
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