1. Neuroimmunomodulation Research Group, Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, SP, Brazil
2. Laboratory of Gastroenterology, Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, SP, Brazil
3. Laboratory of Ornitophatology, School of Veterinary Medicine, University of São Paulo, São Paulo, SP, Brazil