1. Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia.
2. Doctorate in Tropical Medicine SUE-Caribe, University of Córdoba, Monteria, Colombia.
3. Institute of Virology, Faculty of Medicine, University São Paulo, Ribeirão Preto, Brazil.
4. Institute of Virology, University Sao Paulo, Ribeirao Preto, Brazil.