**Prof. Alfonso J. Rodriguez-Morales MD, MSc, DTM&H, FRSTMH(Lon), FFTM RCPS(Glasg), PhD(c). Editor, Current Topics in Tropical Medicine**

Infection and Immunity Research Group, Universidad Tecnológica de Pereira, Pereira, Colombia Immunoparasitology Section, Tropical Medicine Institute, Universidad Central de Venezuela, Caracas, Venezuela Instituto José Witremundo Torrealba, Universidad de Los Andes, Trujillo, Venezuela
