1. Virology Research Center; School of Medicine of Ribeirão Preto, University of São Paulo; Ribeirão Preto Brazil
2. Molecular Immunology Laboratory, Hospital das Clínicas; School of Medicine of Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
3. Death Verification Service (CEMEL) and Department of Pathology; School of Medicine of Ribeirão Preto, University of São Paulo; Ribeirão Preto Brazil