1. Division of Infectious Diseases, Universidade Federal de São Paulo, Brasil (UNIFESP-EPM)/Hospital São Paulo
2. Laboratório Alerta, Universidade Federal de São Paulo (UNIFESP-EPM)/Hospital São Paulo
3. Intensive Care Unit, Hospital Israelita Albert Einstein, São Paulo, Brazil
4. Department of Internal Medicine, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, Virginia