1. Department of Virology and Experimental Therapy (LAVITE), Aggeu Magalhães Institute (IAM), Oswaldo Cruz Foundation (Fiocruz), Recife 50740-465, Brazil
2. Rodents Animal Facilities Complex, Federal University of Uberlandia (REBIR-UFU), Uberlandia 38400-902, Brazil
3. Faculty of Medicine, Federal University of Uberlandia, Uberlandia 38400-902, Brazil
4. Dental Hospital, Oral Pathology Laboratory, University of Uberlandia, Uberlandia 38400-902, Brazil