1. Infectious Diseases Unit, Department of Internal Medicine, Complexo Hospitalario Universitario de Ferrol , SERGAS-A Coruña , Spain
2. Department of Biochemistry, Genetics and Immunology, Universidade de Vigo , Vigo , Spain
3. Infectious Diseases Division and Fight Infections Foundation, University Hospital Germans Trias i Pujol, Badalona , Barcelona , Spain