UtopiaSilver.com Repost-9-13-2026 from GreenMedInfo.com
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A preregistered systematic review in Expert Review of Vaccines found 70 vaccinated transmitters, 812 downstream cases, and one small study underneath the claim that MMR reduces onward spread.
A new peer-reviewed study by CDC, WHO, and Johns Hopkins leadership found that nearly 8 out of every 100 vaccinated people who catch measles pass it to someone else. Almost a third of them had received two doses. And the world has exactly one study, of 137 people, trying to measure how much the vaccine actually reduces onward spread.
For a generation, the public message about the measles shot has been simple. If you are vaccinated, you cannot spread it. A new study, written by the people who run the global measles elimination program, quietly says otherwise.
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Not activists. Not skeptics. The paper is co-authored by the former director of the entire U.S. Immunization Program at the CDC, the CDC’s own measles laboratory chief, the head of Johns Hopkins’ vaccine access center, the recent WHO measles program lead who is now Canada’s Acting Chief Public Health Officer, the man who chairs the WHO commission that certifies whether entire regions have eliminated measles, and PAHO’s top immunization official for the Americas. One author is a paid consultant to Merck, Sanofi, Moderna, Dynavax, and Seqirus. Another runs an institute that discloses funding from vaccine manufacturers.
These are not outsiders raising doubts. The people who spent their careers building the measles elimination framework — at CDC, Johns Hopkins, PAHO, RIVM, and the WHO regional verification commissions — are the people who signed this paper.
The evidence, in detail
Walter Orenstein, MD, ran the U.S. Immunization Program at the CDC for 16 years and was Assistant Surgeon General; he co-edits Plotkin’s Vaccines. Paul Rota, PhD, is the CDC’s Supervisory Microbiologist for the Measles Virus Section and built the WHO’s global measles genotyping laboratory network. William Moss, MD, is Executive Director of the International Vaccine Access Center at Johns Hopkins and sole author of The Lancet‘s 2017 Seminar on measles. Natasha Crowcroft, MD, is the Vice President, Infectious Diseases and Vaccination Programs at the Public Health Agency of Canada and has served as Acting Chief Public Health Officer for Canada since September 2025; she was the WHO’s Senior Technical Adviser for Measles and Rubella in Geneva from 2020 to 2025. in Geneva. David Durrheim has chaired the WHO Western Pacific Regional Measles and Rubella Elimination Verification Commission since 2012. Desirée Pastor, MD, is PAHO’s Regional Immunization Adviser for the Americas.
Orenstein’s disclosure, verbatim: “WO is a consultant with Merck, Sanofi, Moderna, Dynavax, and Seqirus, however receives no funding related to the subject of this manuscript.”
Bolotin’s disclosure, verbatim: “The Center for Vaccine Preventable Diseases (CVPD), of which SB is Director, is supported by various funding sources, including donations from vaccine manufacturers.”
What they found
Across 33 outbreak investigations in 18 countries — investigations selected because they documented transmission events — 70 of 890 vaccinated measles cases (7.9 percent) passed measles on to someone else . This is the rate observed within the investigations selected, not a population estimate. It is what the field’s own leadership finds when it goes looking, and it is the first time the number has been pooled across the modern literature. Those 70 people caused 237 direct next-generation cases, and when the chains were followed forward, 812 total measles cases could be traced back to a vaccinated index case.
Almost a third of the vaccinated spreaders, 22 out of 70, had received two or more doses. Two doses is what the public-health system calls “fully vaccinated.”
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