US measles cases hit 35-year high as federal aid enters outbreak
Confirmed U.S. measles cases reached 4,080 as of Oct. 8, topping all of 2025, with five deaths reported in Pennsylvania. Several states and neighboring countries are also logging new infections.
By Standard Topic. AI-generated from the reporting listed under Coverage. Published . Updated .
This story is no longer being updated. It reflects reporting up to .
What happened
Measles cases in the United States have reached their highest level in 35 years, with 4,080 confirmed as of Oct. 8, according to the CDC. Pennsylvania has recorded more than 1,000 cases in 2026, with 198 hospitalizations and five deaths, and New York's governor declared a statewide health emergency as cases rise in rural counties. New cases have also been reported in Montreal and Kentucky, where Christian County has 45 confirmed cases.
Why it matters
Officials and commentators have called for urgency and transparency from the CDC as the case count climbs. Health officials in Pennsylvania are warning of a rise in reported exposures.
Timeline
- Oct 8: Confirmed U.S. measles cases reached 4,080, surpassing the 2,289 recorded throughout 2025.
- Oct 11, 11:30 PM ET: Measles cases for the year passed 4,000 for the first time in decades, with as many as five deaths in Pennsylvania, as the federal government stepped in with financial support.
- Oct 12, 2:48 AM ET: New York's governor declared a statewide health emergency as cases surged in rural counties.
- Oct 12, 4:19 PM ET: Kentucky confirmed a new case in Christian County, bringing the state's 2026 total to 105.
Coverage
- Why PA. measles outbreak isn’t a seasonal concern (Damon C. Williams)
- Our Opinion: Urgency, transparency from CDC needed in fight to slow measles (citizensvoice.com)
- Measles cases reach a 35-year high in the U.S. (stlamerican.com)
- Reporters' debrief: Measles in New York and Pennsylvania (wskg.org)
- Pennsylvania measles outbreak tops 1,200 as CDC sends investigator
- Pennsylvania measles outbreak grows past 1,200 cases as CDC sends help
- Pennsylvania measles outbreak grows to 1,260 cases in 43 counties
- Pennsylvania measles outbreak grows as CDC sends help amid dispute
- Colorado measles case may have exposed people at Denver airport
- Measles cases spread across several U.S. states as outbreaks grow
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