The Centers for Disease Control and Prevention (CDC) has recently granted $1.6 million to researchers at the University of Southern Denmark to conduct a study on hepatitis B vaccines. This research, led by Christine Stabell Benn and Peter Aaby of the Bandim Health Project in Guinea-Bissau, has raised concerns among experts about its ethics and relevance to the United States.
The study aims to evaluate the impact of administering the hepatitis B vaccine at birth, as opposed to the current practice of giving it at 6 weeks of age in Guinea-Bissau. The CDC funding for this trial, which is set to run for five years, has sparked debates among vaccine experts regarding its potential benefits and risks.
While some experts question the study’s ability to quantify the benefits of the birth dose of the hepatitis B vaccine, others worry about the ethical implications of withholding vaccination from newborns in a country with a high prevalence of chronic hepatitis B infection. The differences in healthcare access, infectious disease burden, and mortality rates between Guinea-Bissau and the United States also raise concerns about the generalizability of the study’s findings.
Moreover, the researchers leading this study, Stabell Benn and Aaby, have been criticized for their past claims about non-specific effects of vaccines. Some studies have questioned the validity of their findings, highlighting the need for rigorous ethical review and scrutiny of the study design.
The ties between Stabell Benn and FDA official Tracy Beth Høeg, as well as their shared views on vaccine policies, have also come under scrutiny. The researchers’ previous work on vaccines, including the controversial DTP vaccine study, has been met with skepticism in the scientific community.
In conclusion, the CDC-funded study on hepatitis B vaccines in Guinea-Bissau raises important questions about ethics, relevance, and scientific rigor. As the research progresses, it will be crucial to ensure transparency, ethical oversight, and a critical evaluation of the study’s methodology and findings.

