01209nam a2200193Ia 4500 CTU_187268 210402s9999 xx 000 0 und d 578.65 P221/Vol.38 Parasitology : Parasite variation: immunological and ecological significance Edited by Mark E. Viney, Andrew F. Read ; co-ordinating editor L. H. Chappell New York Cambridge iniversity press 2002 The papers in this volume examine the natural variations in parasites and their hosts, emphasizing the need for information on the nature and origins of their variations. All organisms vary genetically and phenotypically. This variability, when combined with the variety of interactions between parasites and their hosts, leads to the need to understand the practical significance of the variations possible. Variations in host fitness and/or parasite phenotypes can lead to altered disease rates and host mortality. They can also possibly lead to determining improved means of parasite control. Parasitology,Kí sinh trùng Qhieu Trung tâm Học liệu Trường Đại học Cần Thơ