Newsletter Edition #340 [The Files In-Depth]
Readers,
Ahead of the World Immunization Week (April 24th-30th, 2026), we bring you the political context around the decisions made in institutions such as the Pan American Health Organization, at a time when anti-vaccine sentiment is growing in many parts of the world.
In this edition, my colleague Anne Jomard, discusses a recent decision by PAHO relating to the status of Measles in the Americas region. But this is not only about immunization.
It examines wider implications: what it means for countries to be a part of regional organizations such as the PAHO, even as they choose to withdraw from the WHO.
Jomard raises a pertinent question: "what are the limits of independent oversight within a regional health architecture when the dominant funder exits the global body but retains influence over the regional one." To be sure, PAHO's decision does not, by itself, constitute evidence of political interference, but the author argues that "it creates conditions in which the perception of deference is difficult to avoid, even when the technical justifications are real".
We hope you find this useful. Write to us with your feedback. Jomard is part of our annual fellowship program this year.
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Priti Patnaik, Founder & Publisher, Geneva Health Files
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I. GHF ANALYSIS
What PAHO's Decision on the Status of Measles in the Americas, Reveals About Oversight of Powerful States?
By Anne Jomard
Priti Patnaik contributed to this story
Jomard is a biological research scientist, who has made a transition into journalism, focusing on stories that link science, public health and policy. She is a Geneva Health Files Fellow for 2026. She can be reached at: write@annejomard.com
The decision by the Pan American Health Organization (PAHO) to postpone its review of the United States' measles elimination status—from April to November 2026 — raises the question of whether an international health body can maintain independent, rigorous oversight of a powerful member state.
In November 2025, Canada lost its measles elimination status, following the annual meeting of the PAHO's Regional Verification Commission (RVC) in Mexico City, after the virus had been circulating in the country for the previous 12 months.
In the meantime, measles cases in the United States have been rising at roughly six times the typical rate for the past year—as of April 2, 2026, 1’671 confirmed measles cases were reported in the United States in 2026.
In January 2026, PAHO scheduled a special April 13 session of the RVC specifically to review the US and Mexico status. On March 2nd 2026, PAHO then announced the review would be moved to November 2026, during the Commission's regular annual meeting, citing the need to "simplify and harmonize" the process within the Commission's regular schedule and to accommodate ongoing US genomic sequencing work.
With this, the United States avoided an imminent, internationally visible determination about its measles elimination status for most of 2026.