disaster
Mexico: PAHO Regional Situation Report No.4: Measles in the Region of the Americas (4 June 2026)
By Pan American Health Organization at ReliefWeb
· June 5, 2026
· 2 min read
Countries: Mexico, Bolivia (Plurinational State of), Canada, Guatemala, Haiti, Peru, United States of America . Situation Overview Between epidemiological week (EW) 1 and EW 21 of 2026 (ending on 30 May 2026), the Region of the Americas reported 21,431 confirmed measles cases from 17 countries and t
Key takeaway Mexico (11,184), Guatemala (6,655), the United States (1,983) and Canada (1,042) accounted for the majority (97%) of confirmed cases.
Why this matters
The significant increase in measles cases in the Region of the Americas, with a 234% rise compared to the same period in 2025, highlights the need for continued vigilance and vaccination efforts. The fact that approximately 85% of confirmed cases are either unvaccinated or have an unknown vaccination status suggests that gaps in immunization coverage are a major contributor to the outbreak. The disproportionate impact on young children, particularly infants under one year of age, is also a concern. The identification of the D8 genotype across multiple countries underscores the importance of coordinated regional efforts to track and respond to the outbreak. As the situation evolves, it will be crucial to monitor trends in countries like Peru, where cases are continuing to increase, and to support vaccination efforts in areas with low immunization coverage to prevent further spread of the disease.
About this story
Original reporting by ReliefWeb . Christgiving surfaces reporting from trusted publishers and adds local editorial context so readers can quickly understand what a story means for their community. We attribute every source, link to the original report, and follow a documented editorial standards policy. To understand how stories are selected and reviewed, read our about page .
For the complete original report, visit ReliefWeb . Have a tip or correction? Contact our newsroom .
Category: disaster ·
Published: June 5, 2026 ·
Source: ReliefWeb ·
Reading time: 2 min
newsletter" aria-label="Newsletter signup" style="margin:24px 0;padding:20px 24px;background:linear-gradient(135deg,#1e3a5f 0%,#2d5a8c 100%);border-radius:10px;color:#fff">
Get more Christgiving stories like this
Free weekly briefing covering disaster and other local news. Curated by our editorial team. No spam.
By subscribing you agree to our privacy policy . Unsubscribe anytime.
Frequently asked about this story
What is this story about? Countries: Mexico, Bolivia (Plurinational State of), Canada, Guatemala, Haiti, Peru, United States of America . Situation Overview Between epidemiological week (EW) 1 and EW 21 of 2026 (ending on 30 May 2026), the Region of the Americas reported 21,431 confirmed measles cases from 17 countries and t
When was this published? This article was first published on June 5, 2026 by ReliefWeb and curated for Christgiving readers.
Who reported this story? This story was reported by Pan American Health Organization at ReliefWeb. To learn more about how Christgiving selects and reviews stories, see our editorial standards .
Where can I find related coverage? See more disaster coverage from Christgiving, or browse our daily briefing and topic hubs .