1. 1Department of Pathology and Forensic Medicine, University Hospital, Ribeirão Preto Medical School, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil;
2. 2Division of Epidemiological Surveillance, Secretaria Municipal de Saúde, Ribeirão Preto, São Paulo, Brazil;
3. 3Division of Intensive Care Medicine, Department of Surgery and Anatomy, University Hospital, Ribeirão Preto Medical School, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil;
4. 4Infectious Diseases Division, Department of Internal Medicine, University Hospital, Ribeirão Preto Medical School, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil