[UPDATE] Pennsylvania reports 55 more measles cases, bringing its outbreak to 890 with 4 deaths

173 people have been hospitalized, and Lancaster County alone has 359 of the cases.

Pennsylvania's health department reported 55 new measles cases between Wednesday, Sept. 23, and Friday, Sept. 25. That brings the year's confirmed total to 890 across 39 counties, with 173 hospitalizations. The state counts four deaths as measles-associated. Fewer than 1% of cases are in vaccinated people, and 31% are in people under 18. The state has given more than 5,300 MMR (measles, mumps and rubella vaccine) doses at 165 pop-up clinics since the outbreak began in late April. Health center staff have given more than 7,900 doses overall.

PREVIOUSLY

On Thursday, Sept. 24, the CDC's 2026 measles tracker listed its first death of the year. Pennsylvania's own count already stood at four measles-associated deaths, its first in about 35 years.

How federal officials disputed Pennsylvania's four measles deaths:

August: the new CDC director ordered staff to leave two Pennsylvania deaths out of the national tally pending a review of 'additional information.'
Health and Human Services Secretary Robert F. Kennedy Jr. said the deaths 'may even have been altogether fabricated'; the Lancaster County coroner issued a formal public rebuttal.
Sept. 17: Pennsylvania was seeking more CDC emergency aid but tied its request to the agency publicly recognizing the four deaths.