Luis Martínez-Martínez1. 1. Unit of Microbiology, Hospital Universitario Reina Sofía, Córdoba, Spain; Department of Microbiology, University of Córdoba, Spain; Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Spain. Electronic address: luis.martinez.martinez.sspa@juntadeandalucia.es.