1. Infectious Diseases Department, Hospital Carlos III, Madrid, Spain.
2. Oswaldo Cruz Foundation (FIOCRUZ), Salvador, Bahia, Brazil.
3. Service of Microbiology, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain.
4. Service of Microbiology, Hospital Vall d'Hebron, Barcelona, Spain.
5. Service of Microbiology, Hospital Conxo-CHUS, Santiago, Spain.
6. Infectious Disease Unit, Hospital General de Elche, Elche, Spain.
7. Centro Sanitario Sandoval, Madrid, Spain.
8. Service of Microbiology, Hospital Cristal-Piñor, Orense, Spain.
9. Service of Microbiology, Hospital Universitario Puerta del Mar, Cádiz, Spain.
10. Service of Microbiology, Hospital Clínico Universitario, Valladolid, Spain.
11. Service of Microbiology, Hospital Miguel Servet, Zaragoza, Spain.