study had many facets, including a review of the scientific literature. A questionnaire (see Appendix A) was sent to interested parties and experts to obtain current scientific information. Open meetings were held on July 24-25, 1997, in Bozeman, Montana, and on August 4, 1997, in Jackson Hole, Wyoming, to hear scientific presentations on current research and to provide a forum at which public opinion could be expressed (see Appendix B). Experts were contacted throughout the study process to aid in synthesizing current scientific thought on issues related to brucellosis. The NRC requested public comments after the prepublication copy of the study was released in December 1997. This final document reflects changes made in response to the comments received. Changes were made to clarify the authors' text but did not result in changes to the conclusions and recommendations made in the prepublication release.
The report covers four subjects: infection, transmission of B. abortus, vaccination, and approaches to reducing the risk of transmission.