This monograph contains the proceedings from the International Conference on the Control of Infectious Animal Diseases by Vaccination held in Buenos Aires, Argentina, in April 2004. It provides up-to-date information and examples of successful controls of various diseases, including transboundary diseases, e.g. foot-and-mouth disease, rinderpest and bluetongue, as well as parasitic infestations by using traditional or marker vaccines. The publication aims at improving the international standards related to the use of vaccines and presents recommendations to the World Organisation for Animal Health (OIE). All the partners in the decision-making process for controlling diseases, i.e. chief veterinary officers, animal health regulatory officials, veterinarians, cattle-raising associations and consumer associations will find useful advice for the elimination or eradication of pathogens. This volume will also be of great interest to professors in veterinary medicine.