1. Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil
2. Department of Oral Pathology, Barros Barreto Hospital, Belém, PA, Brazil
3. Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, SP, Brazil
4. Department of Periodontology, University Center of State of Parã, Belém, PA, Brazil
5. Department of Periodontology, Pará State University, Belém, PA, Brazil
6. Department of Oral Pathology, Federal University of Pará, Belém, PA, Brazil