Overview

• Texas health officials closed the west Texas outbreak after 42 days without new cases, totaling 762 infections, 99 hospitalizations and two deaths among unvaccinated children, with Gaines County reporting 414 cases.
• The CDC counts more than 1,350 U.S. cases in 40 states this year, the highest tally in 33 years, and warns additional importations remain likely despite the west Texas cluster ending.
• PAHO reports the region has surpassed 10,000 cases, with recent national tallies including Canada at 4,638, Mexico at 4,164 and the United States at more than 1,350.
• Mexico’s Health Ministry confirms 4,164 cases and 15 deaths as of August 19, concentrated in Chihuahua (3,872 cases, 14 deaths), and has activated a Rapid Response Plan with OPS/WHO support focused on Chihuahua and Sonora.
• In the Texas outbreak, 718 cases occurred in unvaccinated people versus 44 in vaccinated individuals, reflecting coverage gaps that include a 6.76% kindergarten MMR noncoverage in the 2024–2025 school year.