1. Direccion de Investigación, Hospital General “Dr. Manuel Gea Gonzalez,” SSA
2. Departamento de Microbiologia y Parasitologia, Facultad de Medicina, UNAM, Mexico DF
3. Veterinary Clinical Centre, The University of Melbourne, Werribee, Victoria, Australia
4. Taeniasis-Cysticercosis Project, Department of Animal Production, Faculty of Agriculture, University of Dschang, Dschang, Cameroon
5. Facultad de Medicina Veterinaria
6. CINVESTAV, Merida, Yucatan, Mexico
7. Prins Leopold Instituut voor Tropische Geneeskunde, Antwerp, Belgium