Abstract

This dissertation explores the ethics of human subjects research with particular attention to how clinical research on vaccines differs from research on therapies. The major differences are rooted in the fact that the benefits of vaccines and vaccine research accrue to the community to which vaccines belong by inducing herd immunity and thereby protecting both vaccinated and unvaccinated individuals. Therapeutics have no corresponding benefit to the community, the primary beneficiary is the individual. The ethical justification for conducting vaccine research in a given community therefore should include an evaluation of the risks and benefits to the community as well as to involved individuals. Respect for individuals extends to respect for communities and for individuals as members of communities. A three way partnership between investigators, the community, and the community members is suggested as an ethical foundation for vaccine research. ;This model is then applied to the particular and complex case of testing a preventive HIV vaccine. HIV is an unique virus which continues to cause extraordinary devastation worldwide. The characteristics of HIV, its transmission and epidemiology, along with unprecedented scientific possibilities present a formidable challenge to the development and testing of an HIV vaccine. Using the community model, specific suggestions are made for the ethical conduct of clinical efficacy trials of HIV preventive vaccines