Brazilian Journal of Infectious Diseases, Volume: 6, Issue: 5, Pages: 225-231, Published: OCT 2002 Brazilian Journal of Infectious Diseases v.6 n.5 2002 Brazilian Journal of Infectious Diseases Brazilian Society of Infectious Diseases (BSID) instacron:BSID Brazilian Journal of Infectious Diseases, Vol 6, Iss 5, Pp 225-231 (2002) Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS Brazilian Journal of Infectious Diseases, Vol 6, Iss 5, Pp 225-231