1. Servicio Medicina Intensiva, UCI Polivalente, Hospital Universitario Miguel Servet , Zaragoza , Spain
2. Servicio Microbiología, Hospital Universitario Miguel Servet, IIS Aragón , Zaragoza , Spain
3. Servicio Microbiología, Hospital Comarcal Alcañiz , Teruel , Spain
4. Laboratorio de Referencia e Investigación en Patógenos Especiales, Centro Nacional de Microbiología. Instituto de Salud Carlos III , Madrid , Spain
5. Servicio de Farmacia Hospitalaria, Hospital Universitario Miguel Servet , Zaragoza , Spain
6. Oak Ridge Institute for Science and Education, CDC Fellowship Program, Division of High Consequence Pathogens and Pathology, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
7. Departments of Neurosurgery, Pathology and Physiology, University of Maryland School of Medicine , Baltimore, Maryland , USA
8. Division of Laboratory Sciences, Centers for Disease Control and Prevention , Atlanta, Georgia , USA