Within a given culture – whether industrialized or more tradition oriented – essentially the same fundamental medical theories, practices, and pharmacopoeia tend to be applied to human and non-human sickness and patients. In modern industrialized societies, however, healthcare services are sharply divided between human and veterinary medicine. There is likewise a sharp division between practitioners in these two health sectors: medical doctors and veterinarians. Yet in non-Western, traditional or indigenous medical systems, the same practitioners often treat both humans and animals. (...) There is a growing body of literature that attests to the efficacy of traditional health practices and herbal medicines for the prevention and treatment of both human and livestock ailments.The authors argue for an intersectoral approach to human and veterinary health services in poor countries, especially those targeted to rural people with LIMITED access to modern health services. Extension of conventional medical and veterinary services is particularly difficult and costly in Third World countries where the necessary infrastructure (roads, clinics, labs, cold chains, etc.) is poorly developed and where much of the populace and their livestock reside in remote, rural areas, or where people may be nomadic or transhumant. Consideration should therefore be given to the joint delivery of human and livestock healthcare and related services, as well as to linking informal, ethnoveterinary practices and practitioners with more formalized systems of veterinary AND medical practice. Several advantages of such an approach are identified and explored. (shrink)