Reinforcing measles control in the Americas amid mass gatherings: detection, response, and traveler health implications

17 JUNE 2026, WASHINGTON, D.C. — More than 184 000 suspected measles/rubella cases have been reported worldwide in 2026, reflecting widespread transmission across all WHO regions. In the Americas Region, confirmed cases have reached 20 521 by EW 20 -- with 25 deaths -- representing a four-fold increase from the number reported in the same period in 2025. Against this backdrop, mass gatherings and cross-border travel act as amplifiers of transmission, particularly in populations with suboptimal vaccination coverage.

Alimentos complementarios comerciales en Argentina y México: análisis de su composición nutricional, etiquetado y promoción

Objetivo. Caracterizar los alimentos complementarios comerciales (ACC) disponibles en Argentina y México y analizar su alineación con un modelo de perfil de nutrientes y promoción de ACC diseñado y adaptado para América Latina y el Caribe. 

Co-developing a community health worker-led hypertension control intervention in Peru through a human-centered design approach

Objective. To define the essential content and design elements for hypertension support delivered by community health workers (CHWs) in Puno, Peru, aligned with the HEARTS Initiative. 

Methods. We applied a human-centered design approach to co-create strategies for a CHW-led hypertension intervention through five interactive workshops with 24 CHWs, 32 healthcare workers (doctors, nurses, and administrators), and 18 community members with hypertension. 

Current Yellow fever situation in the Americas: call for strengthened surveillance and vaccination efforts in enzootic and newly affected areas

Yellow fever activity in the Americas Region has intensified over the past two years, with 2025 recording the highest annual number of confirmed cases since 2020 (Figure 1). This resurgence follows major outbreaks reported in 2017 and 2018 and is notable for cases in areas without a historical record of transmission, including outside of the Amazon Region. Preventing further spread of the virus requires maintaining strong surveillance systems, sustaining high vaccination coverage in populations living in high-risk areas, and ensuring a timely detection and coordinated response. 

HEARTS in the Americas 2026

Cardiovascular diseases continue to be the leading cause of death in the Region of the Americas, accounting for more than 2.2 million deaths annually, and pose a critical challenge to health systems, economic development, and social equity. The absolute number of cases has continued to rise, while the decline in mortality has slowed since the mid-2010s, jeopardizing progress toward the goal of reducing premature mortality from noncommunicable diseases by 30% by 2030.

Expanding team-based care for hypertension and cardiovascular risk management with HEARTS in the Americas

Cardiovascular diseases remain the leading cause of premature morbidity and mortality globally, with hypertension as their main modifiable risk factor. In Latin America and the Caribbean, hypertension affects more than 30% of adults, yet control rates remain alarmingly low. The HEARTS in the Americas Initiative, led by the Pan American Health Organization, promotes a model of team-based care to enhance risk management for hypertension and cardiovascular diseases within primary health care.

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