1. Trypsin-stimulated transformation of Trypanosoma brucei gambiense bloodstream forms to procyclic forms in vitro

   • Y. Yabu
   • T. Takayanagi

   Original Investigations Pages: 501 - 506

2. Loss of variable antigen during transformation of Trypanosoma brucei rhodesiense from bloodstream to procyclic forms in the tsetse fly

   • C. M. R. Turner
   • J. D. Barry
   • K. Vickerman

   Original Investigations Pages: 507 - 511

3. A radiometric assay for diagnosing lytic antibodies in Trypanosoma cruzi infection

   • R. L. Cardoni
   • M. E. Rottenberg
   • E. L. Segura

   Original Investigations Pages: 512 - 515

4. The infection-stage-related IgG response to Toxoplasma gondii studied by immunoblotting

   • C. Verhofstede
   • P. Van Gelder
   • M. Rabaey

   Original Investigations Pages: 516 - 520

5. Sporogenesis and spore structure in Kudoa lunata (Myxosporea, Multivalvulida)

   • JiŘí Lom
   • Iva Dyková

   Original Investigations Pages: 521 - 530

6. Ultrastructure of the attachment of Cryptosporidium sporozoites to tissue culture cells

   • R. Lumb
   • K. Smith
   • J. A. Lanser

   Original Investigations Pages: 531 - 536

7. Ultrastructural detection of carbohydrates in the pellicle of Pneumocystis carinii

   • H. Yoshikawa
   • H. Morioka
   • Y. Yoshida

   Original Investigations Pages: 537 - 543

8. Heterologous synergistic interactions in concurrent experimental infection in the mouse with Schistosoma mansoni, Echinostoma revolution, Plasmodium yoelii, Babesia microti, and Trypanosoma brucei

   • N. Ø. Christensen
   • P. Furu
   • A. Odaibo

   Original Investigations Pages: 544 - 551

9. Chemical signals of fish skin for the attachment response of Acanthostomum brauni cercariae

   • W. Haas
   • M. Ostrowski de Nuñez

   Original Investigations Pages: 552 - 557

10. Evidence of in vitro germinal layer development in Echinococcus granulosus cysts

    • F. Rodriguez-Caabeiro
    • N. Casado

    Original Investigations Pages: 558 - 562

11. The effect of lentinan on the resistance of mice to Mesocestoides corti

    • T. R. White
    • R. C. A. Thompson
    • G. Chihara

    Original Investigations Pages: 563 - 568

12. The influence of cryopreservation on a benzimidazole-resistant isolate of Haemonchus contortus conditioned for inhibited development

    • W. M. L. Hendrikx
    • J. H. Boersema
    • M. Eysker

    Original Investigations Pages: 569 - 573

13. The molecular phylogenic tree of the genus Trichinella constructed from isozyme patterns

    • S. Fukumoto
    • D. Nagai
    • T. Yamaguchi

    Original Investigations Pages: 574 - 580

14. The effect of the intestinal worms and migrating L1 larvae of Trichinella spiralis on the production of antiparasitic IgE antibodies

    • M. T. Santamarina
    • J. Leiro
    • F. M. Ubeira

    Original Investigations Pages: 581 - 585

15. The ultrastructure of Leishmania major in the foregut and proboscis of Phlebotomus papatasi

    • R. Killick-Kendrick
    • K. R. Wallbanks
    • D. R. Lavin

    Short Communications Pages: 586 - 590

16. Leishmania tarentolae Wenyon, 1921 from the gecko Tarentola annularis in the Sudan

    • Mohamed Elwasila

    Short Communications Pages: 591 - 592

17. Development of isolated and group-reared first instars of Triatoma infestans infected with Trypanosoma cruzi

    • G. A. Schaub

    Short Communications Pages: 593 - 594