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Mexico’s Measles Outbreak Reaches 6,374 Cases After Weekly Surge

Low vaccination coverage left large pockets of susceptibility that concentrated transmission in northern states.

Overview

  • Official surveillance reports more than 200 new measles infections in the latest week, bringing the total to 6,374 cases and 24 deaths across 29 states.
  • Chihuahua remains the epicenter with 4,486 confirmed cases and 21 of the 24 deaths; single fatalities were also recorded in Jalisco, Durango and Sonora.
  • Authorities count 277 active cases—mainly in Jalisco and Chiapas—and 108 hospital admissions linked to confirmed infections during 2025.
  • Vaccination records were absent for 91.2% of confirmed cases, underscoring the gap from the coverage needed to prevent outbreaks.
  • The Pan American region lost measles elimination status in November 2025, and Mexico also closed 2025 with 1,582 pertussis cases and 72 deaths, most in unvaccinated infants.