New York Declares Measles Disaster Emergency as Pennsylvania Outbreak Passes 1,000 Cases

New York Gov. Kathy Hochul has declared a statewide disaster emergency over measles, the first emergency declaration since the U.S. surge began in 2025. The trigger is an outbreak spreading out of Pennsylvania.

Pennsylvania had reported 977 cases and five deaths as of Oct. 2, with most cases in rural communities. New York has reported 108 cases.

"No one should get seriously ill or die from a vaccine-preventable disease," Hochul said in a statement.

What Hochul's order does

The executive order widens the pool of people who can handle measles testing and vaccination. Registered nurses can now order tests for suspected measles. Pharmacists can vaccinate children as young as 2.

It also requires every MMR vaccination to be reported to the state or New York City immunization registry within 72 hours. The order waives adults' consent for that reporting.

That last piece is a privacy trade-off. Supporters of registries argue they speed up outbreak response. The order puts a mandatory government database entry on each shot, without asking the adult, for as long as the emergency lasts.

How fast this moved

Patsy Stinchfield, executive director of the Measles Collaborative, a public health effort led by the National Infectious Diseases Foundation, laid out the speed of the spread. "In January in Pennsylvania, they had 12 cases. Now we're seeing 100 plus cases per week and over 1,000 cases in Pennsylvania," she said.

Her warning: "If Pennsylvania can see it spread that fast, that can happen in any state that has low immunization rates."

Nationally, the CDC counts nearly 3,900 cases this year, the worst since 1991. Stinchfield puts the count above 4,000, the highest in 35 years.

Philadelphia International Airport has been the site of exposure warnings for travelers. Pennsylvania and Philadelphia health officials and Children's Hospital of Philadelphia said last month they are working to make sure potentially exposed infants receive a preventive antibody product to prevent or lessen severe disease.

Philadelphia Health Commissioner Dr. Palak Raval-Nelson called the exposures "a reminder of how important it is for all of us to be up to date on our vaccinations."

The fight over the deaths

The death count has become political. Robert F. Kennedy Jr. has claimed the measles deaths may have been "fabricated," after a coroner raised questions about them. A Pennsylvania commissioner has separately accused Democratic Gov. Josh Shapiro of "deceptive" framing of the deaths.

Those are claims by named officials, not findings. The five-death figure is the state's reported tally. No audit or investigation overturning it has been announced.

No one in this dispute has pointed to a different case count or a different cause for the spread. The disagreement is over how the deaths are characterized and counted.

Are you immune?

With cases climbing, adults want to know whether they are covered. Two doses of the MMR vaccine are 97% effective, meaning 97% of people mount an immune response. "The measles vaccine is safe. It's highly effective, and it confers lifelong immunity," said Dr. Adam Ratner, a pediatric infectious disease physician in New York City and author of Booster Shots, a history of measles.

The age cutoffs matter:

• Born before 1957: presumed immune, because nearly everyone caught measles as a child, said Dr. Larry Kociolek of Lurie Children's Hospital of Chicago. Anyone who has had measles can be confident they are protected.
• Born after 1957, vaccinated before 1968: may need another dose. Some people in that window got an early, less effective vaccine made from inactivated virus.
• Unsure which vaccine you got: the CDC recommends talking to your doctor about one or two doses.

Children in the U.S. originally got a single MMR dose. That changed in 1989, after public health officials determined one dose was not enough.

Before the vaccine, measles killed 400 to 500 people a year in the U.S.

What comes next

Hochul's order is in place, but the state has not said how long the emergency will last. Whether it slows the Pennsylvania spillover will show up in New York's count, now at 108 cases. Pennsylvania's weekly total, which Stinchfield puts above 100, is the other number to watch.