1. Department of Nursing, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Bizkaia, Spain
2. Department of Immunology, Microbiology and Parasitology, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Bizkaia, Spain
3. Microbiology Laboratory, Hospital Universitario Severo Ochoa, Leganés-Madrid, Spain
4. Microbiology Laboratory, University Hospital Cruces, Barakaldo, Bizkaia, Spain
5. BioCruces Health Research Institute, Barakaldo, Bizkaia, Spain
6. Hematology and Hemotherapy Ward, University Hospital Cruces, Barakaldo, Bizkaia, Spain