1 Case VA Center for Antimicrobial Resistance and Epidemiology, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, and Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA. Electronic address: federico.perez@va.gov.
2 Case VA Center for Antimicrobial Resistance and Epidemiology, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, and Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA.