1. Department of Infectious Diseases and Tropical Medicine/Infectious Diseases Pathology Laboratory; Hospital Internacional; Barquisimeto Venezuela
2. Laboratory of Biochemistry; Instituto de Biomedicina/IVSS; Caracas Venezuela
3. Programa de Pós-Graduação em Medicina Tropical; Universidade do Estado do Amazonas; Universidade Nilton Lins; Manaus Amazonas Brasil
4. Instituto de Patología Experimental; Facultad de Ciencias de la Salud; Universidad Nacional de Salta; Salta Argentina
5. Hospital Pediátrico Baca Ortiz; Quito Ecuador
6. Infectious Diseases and Infection Control Reserch Group; Hospital Universitario de Sincelejo; Sincelejo Sucre Colombia
7. Universidad Centroccidental Lisandro Alvarado (UCLA); Barquisimeto Venezuela
8. Public Health and Infection Research Group; Faculty of Health Sciences; Universidad Tecnológica de Pereira; Pereira Risaralda Colombia