1. Preface R. J. Martin; 2. Simulating Dictoyocaulus viviparus infection in calves: the parasitic phase H. W. Ploeger and M. Eysker; 3. Vaccine development and diagnostics of Dictoyocaulus viviparus J. B. McKeand; 4. The immune response and the evaluation of acquired immunity against gastrointestinal nematodes in cattle: a review E. Claerebout and J. Vercruysse; 5. Development of vaccines against gastrointestinal nematodes D. Knox; 6. Immunological responses of sheep to Haemonchus contortus H. D. F. H. Schallig; 7. Impact of nutrition on the pathophysiology of bovine trypanosomiasis P. H. Holmes, E. Katunguka-Rwakishaya, J. J. Benison, G. J. Wassink and J. J. Parkins; 8. Electrophysiological investigation of anthelmintic resistance R. J. Martin; 9. The development of anthelmintic resistance in sheep nematodes F. Jackson and R. L. Coop; 10. Value of present diagnostic methods for gastrointestinal nematode infections in ruminants M. Eysker and H. W. Ploeger; 11. Prospects for controlling animal parasitic nematodes by predacious micro fungi M. Larsen; 12. Onchocerca ochengi infections in cattle as a model for human onchocerciasis: recent developments A. J. Trees, S. P. Graham, A. Renz, A. E. Bianco and V. Tanya.
