J Maurício1, B Flor-de-Lima2, P Pacheco3. 1. Internal Medicine Resident, Internal Medicine Department, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal. Electronic address: joana.mauricio@hff.min-saude.pt. 2. Specialist at Infectious Diseases Department, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal. 3. Headmaster of Infectious Diseases Department, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal.