Cases Are Accelerating as Summer Peaks
The United States has confirmed 2,231 measles cases in 2026 as of July 9, with five months of transmission season remaining and the peak summer and fall period still ahead. The figure, confirmed by the CDC, leaves the country just 58 cases below the full-year 2025 total of 2,289. At the current pace, 2026 is on track to become the worst measles year in the United States since 1992.