Controversial vaccine trial touted by RFK Jr gets go-ahead in Guinea-Bissau

Read the original at The Guardian ↗
The Guardian · collected 2026-10-09 · by Melody Schreiber

Quick Summary

A controversial hepatitis B vaccine trial, supported by Robert F Kennedy Jr and involving withholding vaccines from some newborns in Guinea-Bissau for six weeks, received approval to proceed this week. The trial aims to enroll 14,000 infants, with half receiving the birth dose of the vaccine and the other half delayed by six weeks. This move has sparked ethical concerns among critics who argue that such trials exploit vulnerable populations; three members of a Danish ethics committee have resigned in protest over the study's design. The U.S. Centers for Disease Control and Prevention is contributing $1.6 million to the project, which also involves private funding from foundations associated with Kennedy’s work on vaccine skepticism.
Written locally by qwen2.5:14b on 2026-10-09, using this article's own text rather than the other coverage of the same event (that is the story summary below).

AI analysis runs on qwen2.5:14b, locally

Story summary

A controversial research trial that will withhold hepatitis B vaccines from some African newborns has been approved to proceed this week in Guinea-Bissau. The trial is supported by Robert F Kennedy Jr., who praised Danish researchers at an anti-vaccine conference last month, touting it as aligning with the Trump administration’s vaccine agenda, which includes questioning vaccine safety and effectiveness. The trial plans to enroll 14,000 infants, giving half of them the hepatitis B vaccine while withholding it from the other half. Critics argue that such a study would be unethical in developed countries like the US due to its significant ethical concerns and suggest that Kennedy is exploiting children in developing nations for his anti-vaccine agenda. Paul Offit, an infectious disease physician, questions whether African children are considered more expendable than those in wealthier nations.

Written for “Vaccine Trial Controversy” on 2026-10-10, grounded in this article and the 0 other(s) covering the same event.
Why this leaning score
The model judged this article politically coded and scored it -0.65, but all 3 of its quote(s) are attributed speech - words the article quotes from someone, not the article's own narration, so the score is not published.
Written under an earlier scoring contract, which gave a paragraph rather than checkable quotes. Re-analysing this article replaces it.
Leaning score withheld for article 69471: attributed speech only · logged 2026-10-09

Signals How these are calculated →

Claims extracted
48
claim-shaped sentences
Uncertain
12%
6 of 48 hedged
Leaning
withheld
no quote in the article backed the model's score
Correction & hedging signals
68.5
corrections and hedging in what we collected; not a measure of accuracy
Outlets on this story
1
Health
Narrative spread
1
articles carrying this framing
Analyzed 2026-10-09 · how these are computed

Story

📰 Vaccine Trial Controversy
Health · 1 article(s) covering the same event.

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

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Publisher

The Guardian · 1579 article(s) · 4 correction(s) detected
Running correction rate · 4 correction(s)
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Who wrote this

Melody Schreiber
9 article(s) here · 1 carrying a prediction
🔮 A controversial research trial that will withhold hepatitis B vaccines from some African newborns was given approval to move forward this week.
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Also by Melody Schreiber
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 9 articles by Melody Schreiber →

Topics

African CDC Danish Guinea-Bissau the US

Subjects

Danish NORP · 4× Guinea-Bissau GPE · 3× Kennedy PERSON · 3× CDC ORG · 2× Guardian ORG · 2× Hansen PERSON · 2× Offit PERSON · 2× African NORP · 1× Robert F Kennedy Jr PERSON · 1× the US ORG · 1×

Narrative

At an anti-vaccine conference last month, Kennedy praised the Danish researchers behind the trial and touted US-supported research on hepatitis B in newborns as exemplifying the Trump administration’s agenda for vaccines, which has included slashing vaccine recommendations and casting doubt on the safety and effectiveness of shots.
framing: assertive · carried by 1 article(s) · first seen 2026-10-09
🔮 A controversial research trial that will withhold hepatitis B vaccines from some African newborns was given approval to move forward this week.
2026-10-09 · The Guardian
Controversial vaccine trial touted by RFK Jr gets go-ahead in Guinea-Bissau · assertive framing

Claims (48 extracted, 6 hedged)

A controversial research trial that will withhold hepatitis B vaccines from some African newborns was given approval to move forward this week. asserted
that → withhold → approval
At an anti-vaccine conference last month, Kennedy praised the Danish researchers behind the trial and touted US-supported research on hepatitis B in newborns as exemplifying the Trump administration’s agenda for vaccines, which has included slashing vaccine recommendations and casting doubt on the safety and effectiveness of shots. asserted
which → praise → shots
Kennedy “wants to make it so we don’t use a birth dose here in this country,” said Paul Offit, an infectious disease physician at Children’s Hospital of Philadelphia. asserted
Offit → want → Philadelphia
“That’s the goal.” asserted
That → ’ → ?
Kennedy would never be able to do the trial in the US because of its significant ethical concerns, Offit added. asserted
Offit → do → concerns
“He’s taking advantage of a developing country … asserted
He → take → country
Danish researchers plan to enroll 14,000 infants in Guinea-Bissau in the trial, giving the hepatitis B vaccine to half of the babies at birth and withholding it from the others for the first six weeks of life. asserted
researchers → plan → life
An ethics committee at the researchers’ home institution of the University of Southern Denmark voted this week to proceed with the trial, and officials in Guinea-Bissau have also greenlit the project, which the health minister, Quinhin Nantote, initially said was suspended after international uproar earlier this year. asserted
minister → vote → uproar
Stig Børsen Hansen, a founding member who was one of two reviewers who presented the study to the Danish committee, resigned from the group in protest on Friday, citing major ethical issues with the study. “You are now enrolling newborns in a lottery to test a hypothesis,” Hansen said. asserted
Hansen → present → hypothesis
The children who are randomly selected not to receive the birth dose of the vaccine, those who “lost the lottery”, face in their earliest days the risk of contracting hepatitis B, which can cause irreversible lifelong damage. asserted
which → select → damage
“They contract hepatitis B in the context of being part of a research project,” Hansen said, which made their infection happen, in effect, “by design”. asserted
infection → contract → design
Three other members of the committee have also resigned in protest. asserted
members → resign → protest
The US Centers for Disease Control and Prevention (CDC) has reportedly set aside $1.6m in this year’s budget for the project, and it will be matched with private funding from the Pershing Square Foundation, which was co-founded by the billionaire activist Bill Ackman, and the Bluebell Foundation. uncertain
which → set → activist
The CDC, the Danish researchers, Pershing Square and Nantote have not responded to the Guardian’s questions about this trial. asserted
CDC → respond → trial
The news that the trial was approved by the Denmark ethics committee was first reported on Thursday by CIDRAP News. asserted
trial → approve → News
This is the first time details of the updated protocol have been disclosed. asserted
details → update → protocol
The Guinea-Bissau study protocol has changed since it was posted in January, according to details shared with the Guardian. uncertain
it → change → Guardian
The researchers will now test mothers for hepatitis B before they give birth. asserted
they → test → birth
The babies of mothers who test positive will be given the vaccine and will not be included in the trial. asserted
who → test → trial
But the babies of mothers whose tests are negative may be enrolled. uncertain
tests → enrol → mothers
The new protocol has not been shared publicly. asserted
protocol → share → ?
In previous research, half of children who contracted hepatitis B did so after birth, through community exposures. asserted
who → contract → exposures
“This virus can be transmitted casually,” Offit said. asserted
Offit → transmit → ?
It can live on surfaces for up to seven days, and it can be acquired by sharing washcloths, toothbrushes and fingernail clippers. asserted
it → live → washcloths
In addition, the hepatitis B test has a 5% false negative rate, which could provide false assurance that a birthing parent does not have the virus. uncertain
parent → have → virus
Decades of research make it clear that the vaccine would be beneficial, which means it would be unfair to place some children in the vaccinated group and some children in the unvaccinated group, said Henrik Støvring, a professor of statistics and pharmacometrics at Aarhus University in Denmark. asserted
Støvring → make → Denmark
According to the Helsinki declaration, international medical research must be approved by ethics committees in both the host and sponsor countries. uncertain
research → accord → countries
The Danish research ethics committee at the University of Southern Denmark had never considered medical studies before, but it changed the rules in order to vote on this one. asserted
it → consider → one
While committee members with expertise argued against approving it, the majority ruled to move forward. asserted
majority → argue → it
“It’s very unusual to bring this into a committee like that,” Støvring said. asserted
Støvring → ’ → that
The national ethics committee in Denmark oversees medical research, but this study was outside of their purview because it won’t take place in Denmark. asserted
it → oversee → Denmark
Yet “I don’t see why you couldn’t do it in Denmark,” Støvring said of the trial. asserted
Støvring → see → trial
In fact, several conditions make it a better location. asserted
it → make → fact
The hepatitis B vaccine is not usually given to newborns in Denmark unless the mother is positive for the virus, for which all pregnant people are tested in Denmark. asserted
people → give → Denmark
Guinea-Bissau has some of the highest rates of hepatitis B in the world, with about 18% of adults carrying the virus. asserted
% → have → virus
While it may be transmitted from mother to child during birth, it could also be transmitted from another parent, relatives, siblings or caregivers. uncertain
it → transmit → parent
Children who are infected with hepatitis B in the first year of life are significantly more likely to develop severe outcomes, including chronic infection and liver cancer. asserted
who → infect → infection
The Bandim Health Project, run by Danish researchers Peter Aaby and Christine Stabell Benn, has operated in Guinea-Bissau for decades and is closely enmeshed in the country’s health system. asserted
Project → run → system
At least one top official, the current director of public health, held a dual appointment with Bandim as recently as December. asserted
official → hold → December
Kennedy praised the Danish researchers at a recent anti-vaccine conference, calling them “the deities of vaccine research”. asserted
Kennedy → praise → research
…and 8 more, not listed.
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