1. Laboratory of Bacteriology, Center of Biological Sciences, Department of Microbiology, State University of Londrina, Londrina P.O. Box 10.011, Brazil
2. Microorganism Research Center, Health Sciences Center, Department of Dermatological, Infectious and Parasitic Diseases, Medical School of São José do Rio Preto, São José do Rio Preto P.O. Box 15.090, Brazil
3. Laboratory of Basic and Applied Bacteriology, Center of Biological Sciences, Department of Microbiology, State University of Londrina, Londrina P.O. Box 10.011, Brazil
4. Department of Pathology, Health Sciences Center, Clinical and Toxicological Analysis, University Hospital of Londrina, State University of Londrina, Londrina P.O. Box 10.011, Brazil