REFERENCES
- Clarkson, M. J., Penhale, W. J. & McKenna, R. B. (1975). Progressive serum protein changes in experimental infections of calves with Trypanosoma vivax. Journal of Comparative Pathology, 85, 397–410.
- Dar, F. K., Parts, J. & Wilson, A. J. (1973). Serological studies on trypanosomiasis in East Africa. IV. Comparison of antigenic types of Trypanosoma vivax group organisms. Annals of Tropical Medicine and Parasitology, 67, 319–329.
- Fahey, J. L. & McElvey, E. M. (1965). Quantitative determination of serum immunoglobulins in antibody- agar plates. Journal of Immunology, 94, 84–90.
- Gray, A. R. (1965). Antigenic variation in a strain of Trypanosoma brucei transmitted by Glossina morsitans and G. palpalis. Journal of General Microbiology, 41, 195–214.
- Gray, A. R. (1970). A study of the antigenic relationships of isolates of Trypanosoma brucei collected from a herd of cattle kept in one locality for five years. Journal of General Microbiology, 62, 301–313.
- Gray, A. R. (1972). Variable agglutinogenic antigens of Trypanosoma gambiense and their distribution among isolates of the trypanosome collected in different places in Nigeria. Transactions of the Royal Society of Tropical Medicine and Hygiene, 66, 263–284.
- Gray, A. R. (1974). Antigenic similarities among isolates of Trypanosoma gambiense from different countries in Africa. Transactions of the Royal Society of Tropical Medicine and Hygiene, 68, 150–151.
- Jones, T. W. & Clarkson, M. J. (1972). The effect of syringe and cyclical passage on antigenic variants of Trypanosoma vivax. Annals of Tropical Medicine and Parasitology, 66, 303–312.
- Lanham, S. M. & Godfrey, D. G. (1970). Isolation of salivarian trypanosomes from man and other mammals using DEAE-cellulose. Experimental Parasitology, 28, 521–534.
- Leeflang, P., Buys, J. & Blotkamp, C. (1976). Studies on Trypanosoma vivax: infectivity and serial maintenance of natural bovine isolates in mice. International Journal of Parasitology, 6, 413–417.
- Lumsden, W. H. R., Herbert, W.J. & McNeillage, G.J. C. (1973). Techniques with Trypanosomes. Edinburgh & London: Churchill Livingstone.
- Murray, A. K. (1982). Characterization of stocks of Trypanosoma vivax I. Isoenzyme studies. Annals of Tropical Medicine and Parasitology, 76, 275–282.
- Van Meirvenne, N., Janssens, P. F. & Magnus, E. (1975). Antigenic variation in syringe passaged populations of Trypanosoma (Trypanozoon) brucei. 1. Rationalization of the experimental approach. Annales de la Société de Beige de Médicine Tropicale, 55, 1–23.
- Voller, A., Bidwell, D. & Bartlett, A. (1975). A serological study on human Trypanosoma rhodesiense infections using a microscale enzyme linked immunosorbent assay. Tropenmedizin und Parasitologic, 26, 247–251.
- Weeke, B. (1973). Crossed immunoelectrophoresis. In A Manual of Quantitative Immunoelectrophoresis. Methods and Applications, eds. Axelsen, N. H., Krøll, J. & Weeke, B., pp. 47–56. Baltimore: University Park.
- Wenyon, C. M. (1926). Protozoology: I, pp. 559–565. London: Baillière, Tindall & Cox.