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Measles surge continues across the Americas and U.S

Updated 8 times since CLSTR started tracking revisions of this situation.

What changed

2026-08-21 12:29 UTC → 2026-08-26 00:52 UTC · added removed

By late August 2026, the measles resurgence across the Americas has prompted widespread public health responses escalated, marked by fatalities in the United States and significant economic costs. new suspected cases in Honduras. In the United States, the outbreak has turned fatal in Lancaster County, Pennsylvania, where health officials reported the first two measles-related deaths of 2026. Both deceased individuals were unvaccinated. This represents the first recorded measles deaths in Pennsylvania in 35 years, with the state reporting 393 confirmed cases have reached a 35-year high, an analysis by Truveta revealed that over 74,000 across 28 counties this year. These developments follow previous trends where adults aged 50 and older sought measles increased antibody titer tests between January and March 2025, a trend linked testing due to heightened awareness of outbreaks in West Texas and South Carolina. The financial impact of these outbreaks is substantial; a study by the New Mexico Department of Health and In Honduras, the CDC estimated that containing a single outbreak spreading from Texas into New Mexico cost approximately $5.4 million. This figure includes $3.2 million for public health response, $2.1 million Aníbal Murillo Escobar Hospital in Olanchito has implemented mandatory mask-wearing for vaccination efforts, all staff, patients, and $1.6 million in productivity losses, averaging over $53,000 per visitors following suspected measles cases. Although the Secretariat of Health has not yet confirmed case. these cases via laboratory testing, medical officials have begun proactively vaccinating children in the area. Regional containment efforts continue to curb transmission are intensifying. expand. In Mexico, Tlaxcala reported administering over 565,000 vaccine doses through July 2026. In Argentina, health centers like the Dr. Ramón Carrillo center in Clorinda have launched door-to-door vaccination drives, while drives. In Chile, the Servicio de Salud Chiloé is reinforcing school-based vaccination strategies to reach a 90% coverage rate. Meanwhile, Mecklenburg County in the U.S. has mandated that students be up to date on vaccinations by late September to prevent further outbreaks. These measures follow the Pan American Health Organization’s (PAHO) epidemiological alert, which classified mitigate the regional risk as “very high” due to persistent vaccination gaps spread of measles and increased population mobility. other diseases.

Versions

  1. 2026-08-26 00:52 UTC Measles surge continues across the Americas and U.S
  2. 2026-08-21 12:29 UTC Measles surge continues across the Americas and U.S
  3. 2026-08-09 20:06 UTC Measles cases surge across the Americas and U.S
  4. 2026-08-08 21:57 UTC Measles cases surge across the Americas and U.S
  5. 2026-08-08 20:18 UTC Measles cases surge across the Americas and U.S
  6. 2026-08-05 05:04 UTC US measles cases hit 35‑year high, South Carolina surge
  7. 2026-08-04 17:43 UTC US measles cases hit 35‑year high, South Carolina surge
  8. 2026-07-31 00:42 UTC US measles cases hit 35‑year high, South Carolina surge
  9. 2026-07-30 10:29 UTC US measles cases hit 35‑year high, South Carolina surge

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