1. Department of Preventive Medicine University Hospital Clementino Fraga Filho Federal University of Rio de Janeiro Rio de Janeiro Brazil
2. School of Health Sciences Universidade do Grande Rio Duque de Caxias Brazil
3. Service of Renal Transplantation Rio de Janeiro State Center of transplantation São Francisco na Providência de Deus Hospital Rio de Janeiro Brazil
4. Department of Microbiology and Parasitology Biomedical Institute Fluminense Federal University Niterói Brazil