title: Antigenic variation in parasites.
mesh_terms: D000818:Animals; D000947:Antigens, Helminth / Q000032:analysis*; D000953:Antigens, Protozoan / Q000032:analysis*; D001403:Babesia / Q000276:immunology; D006023:Glycoproteins / Q000032:analysis / Q000235:genetics; D010961:Plasmodium / Q000276:immunology; D013045:Species Specificity; D014345:Trypanosoma / Q000276:immunology
chemical_list: D000947:Antigens, Helminth; D000953:Antigens, Protozoan; D006023:Glycoproteins