Overview

• OPS reports 11,313 measles cases and 23 deaths across 10 countries through mid‑September, with Canada, Mexico and the United States accounting for 96% of the regional burden.
• In Mexico, OPS counted 4,553 cases and 19 deaths as of early September, while government figures now cite more than 4,630 confirmed cases and 21 deaths across 23 states.
• Chihuahua is the national epicenter with 4,133 cases and the majority of fatalities, and Mexico City has reported only six cases.
• Authorities expanded vaccination access with a UNAM megacenter operating Sept. 17–19 for people six months to 49 years, and free doses available at IMSS, ISSSTE and Secretaría de Salud clinics.
• OPS attributes the surge to large immunity gaps, noting over 71% of confirmed cases lacked vaccination, with the highest incidence in children 0–4 and significant cases in adults 25–34, and it advises vaccinating contacts up to age 39 and giving vitamin A to cases.