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Story summary
- The United States is on track to record up to 6,500 measles cases in 2026.
- Dr. Amesh Adalja of Johns Hopkins Center for Health Security projected 6,000-6,500 cases by year-end.
- As of October 8, 2026, the U.S. had 4,080 cases, 78 % higher than 2025.
- Pennsylvania confirmed five measles deaths, a sixth under review, and 1,222 cases by October 14.
- Experts warned the U.S. could lose measles-elimination status at the November PAHO review.
