Volume 23 (3) of the Scientific and Technical Review contains 31 articles submitted by experts from all parts of the world, brought together under the following headings: Epidemiology and veterinary economics, organisation of Veterinary Services and service delivery, reports, and communications.

The articles describe ex-ante economic analysis of animal disease surveillance, methods for assessing the impact of animal diseases on global trade, and discuss the epidemio logy of several diseases in different parts of the world (for example, the peste des petits ruminants in India , Newcastle disease in Chad , and animal and human brucellosis in Jordan ). They present models for the organisation of veterinary public health, discuss the use of databases on the Internet for carrying out complex animal health studies, propose disease control strategies and describe quality management in reference tests.

The Review also constitutes a unique vehicle for the publication of reports on the situation of various animal diseases in the world, in particular in countries whose animal health situation receives little or no publicity otherwise (sheep pox and schistosomiasis in India, anthrax and tuberculosis in Ethiopia.) Last but not least, readers of this issue of the Review will find articles by internationally renowned researchers on diagnostic methods (brucellosis, FMD) as well as articles on diverse subjects, such as ostrich farming in Zimbabwe or problems encountered when translating the OIE Manual of diagnostic tests and vaccines for terrestrial animals into Spanish.