William R. Miller1, Arnold S. Bayer2,3 and Cesar A. Arias1,4,5,6 1University of Texas Medical School at Houston, Department of Internal Medicine, Division of Infectious Diseases, Houston, Texas 77030 2Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California 90502 3David Geffen School of Medicine at UCLA, Los Angeles, California 90095 4Department of Microbiology and Molecular Genetics, Houston, Texas 77030 5Molecular Genetics and Antimicrobial Resistance Unit, Universidad El Bosque, Bogota, Colombia 6International Center for Microbial Genomics, Universidad El Bosque, Bogota, Colombia Correspondence: Cesar.Arias{at}uth.tmc.edu