All Stories

  1. Real-Time PCR Targeting the penA Mosaic XXXIV Type for Prediction of Extended-Spectrum-Cephalosporin Susceptibility in Clinical Neisseria gonorrhoeae Isolates

    Article • Antimicrobial Agents and Chemotherapy, August 2017, ASM Journals

    Romney Humphries

  2. Resistance to Ceftazidime-Avibactam Is Due to Transposition of KPC in a Porin-Deficient Strain of Klebsiella pneumoniae with Increased Efflux Activity

    Article • Antimicrobial Agents and Chemotherapy, July 2017, ASM Journals

    Romney Humphries

  3. Resistance to Ceftazidime-Avibactam in Klebsiella pneumoniae Due to Porin Mutations and the Increased Expression of KPC-3

    Article • Antimicrobial Agents and Chemotherapy, April 2017, ASM Journals

    Romney Humphries

  4. Use of Ancillary Carbapenemase Tests To Improve Specificity of Phenotypic Definitions for Carbapenemase-Producing Enterobacteriaceae

    Article • Journal of Clinical Microbiology, March 2017, ASM Journals

    Romney Humphries

  5. Reply to “Burkholderia pseudomallei: Challenges for the Clinical Microbiology Laboratory—a Response from the Front Line”

    Article • Journal of Clinical Microbiology, February 2017, ASM Journals

    Romney Humphries

  6. Clinical and Microbiological Aspects of β-Lactam Resistance in Staphylococcus lugdunensis

    Article • Journal of Clinical Microbiology, December 2016, ASM Journals

    Romney Humphries

  7. Multicenter Evaluation of a Modified Cefoxitin Disk Diffusion Method and PBP2a Testing To PredictmecA-Mediated Oxacillin Resistance in Atypical Staphylococcus aureus

    Article • Journal of Clinical Microbiology, November 2016, ASM Journals

    Romney Humphries

  8. Performance of Vitek 2 for Antimicrobial Susceptibility Testing of Acinetobacter baumannii, Pseudomonas aeruginosa, and Stenotrophomonas maltophilia with Vitek 2 (2009 FDA) and CLSI M100S 26th Edition Breakpoints

    Article • Journal of Clinical Microbiology, November 2016, ASM Journals

    Romney Humphries

  9. Burkholderia pseudomallei: Challenges for the Clinical Microbiology Laboratory

    Article • Journal of Clinical Microbiology, September 2016, ASM Journals

    Romney Humphries

  10. Performance of Etest for Antimicrobial Susceptibility Testing of Abiotrophia defectiva and Granulicatella Species: TABLE 1

    Article • Journal of Clinical Microbiology, June 2016, ASM Journals

    Romney Humphries

  11. In VitroAntimicrobial Susceptibility of Staphylococcus pseudintermedius Isolates of Human and Animal Origin: TABLE 1

    Article • Journal of Clinical Microbiology, March 2016, ASM Journals

    Romney Humphries

  12. Performance and Verification of a Real-Time PCR Assay Targeting thegyrAGene for Prediction of Ciprofloxacin Resistance in Neisseria gonorrhoeae: TABLE 1

    Article • Journal of Clinical Microbiology, January 2016, ASM Journals

    Romney Humphries

  13. Antimicrobial Susceptibilities of Abiotrophia defectiva, Granulicatella adiacens, and Granulicatella elegans

    Article • Antimicrobial Agents and Chemotherapy, December 2015, ASM Journals

    Romney Humphries

  14. Point-Counterpoint: Reflex Cultures Reduce Laboratory Workload and Improve Antimicrobial Stewardship in Patients Suspected of Having Urinary Tract Infections

    Article • Journal of Clinical Microbiology, December 2015, ASM Journals

    Romney Humphries, Dr Jennifer Dien Bard

  15. Evaluation of Oxacillin and Cefoxitin Disk and MIC Breakpoints for Prediction of Methicillin Resistance in Human and Veterinary Isolates of Staphylococcus intermedius Group

    Article • Journal of Clinical Microbiology, November 2015, ASM Journals

    Romney Humphries

  16. Continuing Challenges for the Clinical Laboratory for Detection of Carbapenem-Resistant Enterobacteriaceae

    Article • Journal of Clinical Microbiology, October 2015, ASM Journals

    Romney Humphries

  17. Evaluation of Surrogate Disk Tests for Detection of Ciprofloxacin and Levofloxacin Resistance in Clinical Isolates of Salmonella enterica

    Article • Journal of Clinical Microbiology, August 2015, ASM Journals

    Romney Humphries

  18. Superbugs on Duodenoscopes: the Challenge of Cleaning and Disinfection of Reusable Devices

    Article • Journal of Clinical Microbiology, July 2015, ASM Journals

    Romney Humphries

  19. First Report of Ceftazidime-Avibactam Resistance in a KPC-3-Expressing Klebsiella pneumoniae Isolate

    Article • Antimicrobial Agents and Chemotherapy, July 2015, ASM Journals

    Romney Humphries, Dr Peera Hemarajata

  20. Development of a Novel Real-Time PCR Assay with High-Resolution Melt Analysis To Detect and Differentiate OXA-48-Like β-Lactamases in Carbapenem-Resistant Enterobacteriaceae

    Article • Antimicrobial Agents and Chemotherapy, June 2015, ASM Journals

    Romney Humphries, Dr Peera Hemarajata

  21. In VitroActivity of Daptomycin in Combination with β-Lactams, Gentamicin, Rifampin, and Tigecycline against Daptomycin-Nonsusceptible Enterococci

    Article • Antimicrobial Agents and Chemotherapy, May 2015, ASM Journals

    Romney Humphries

  22. Photo Quiz: A Child with Fever after Hematopoietic Stem Cell Transplantation: FIG 1

    Article • Journal of Clinical Microbiology, April 2015, ASM Journals

    Romney Humphries

  23. Answer to May 2015 Photo Quiz

    Article • Journal of Clinical Microbiology, April 2015, ASM Journals

    Romney Humphries

  24. Comparison of the AmpliVue, BD Max System, andillumigene Molecular Assays for Detection of Group B Streptococcus in Antenatal Screening Specimens

    Article • Journal of Clinical Microbiology, March 2015, ASM Journals

    Romney Humphries

  25. Performance of Vitek 2 for Antimicrobial Susceptibility Testing of Enterobacteriaceae with Vitek 2 (2009 FDA) and 2014 CLSI Breakpoints

    Article • Journal of Clinical Microbiology, December 2014, ASM Journals

    Romney Humphries

  26. Performance of Etest and Disk Diffusion for Detection of Ciprofloxacin and Levofloxacin Resistance in Salmonella enterica

    Article • Journal of Clinical Microbiology, October 2014, ASM Journals

    Romney Humphries

  27. Laboratory Evaluation of Three Rapid Diagnostic Tests for Dual Detection of HIV and Treponema pallidum Antibodies

    Article • Journal of Clinical Microbiology, October 2014, ASM Journals

    Romney Humphries

  28. Phenotypic and Molecular Characteristics of Carbapenem-Resistant Enterobacteriaceae in a Health Care System in Los Angeles, California, from 2011 to 2013

    Article • Journal of Clinical Microbiology, September 2014, ASM Journals

    Romney Humphries

  29. Precision of Vancomycin and Daptomycin MICs for Methicillin-Resistant Staphylococcus aureus and Effect of Subculture and Storage

    Article • Journal of Clinical Microbiology, August 2014, ASM Journals

    Romney Humphries

  30. Mechanisms of Linezolid Resistance among Coagulase-Negative Staphylococci Determined by Whole-Genome Sequencing

    Article • mBio, May 2014, ASM Journals

    Romney Humphries

  31. In Vitro Antimicrobial Susceptibility of Aerococcus urinae

    Article • Journal of Clinical Microbiology, March 2014, ASM Journals

    Romney Humphries

  32. Ceftaroline Restores Daptomycin Activity against Daptomycin-Nonsusceptible Vancomycin-Resistant Enterococcus faecium

    Article • Antimicrobial Agents and Chemotherapy, December 2013, ASM Journals

    Romney Humphries, George Sakoulas

  33. Comparison of Illumigene, Simplexa, and AmpliVue Clostridium difficile Molecular Assays for Diagnosis of C. difficile Infection

    Article • Journal of Clinical Microbiology, December 2013, ASM Journals

    Romney Humphries

  34. Performance of Vitek 2 for Antimicrobial Susceptibility Testing of Staphylococcus spp. and Enterococcus spp.

    Article • Journal of Clinical Microbiology, November 2013, ASM Journals

    Romney Humphries

  35. Detection of Intestinal Protozoa in the Clinical Laboratory

    Article • Journal of Clinical Microbiology, November 2013, ASM Journals

    Romney Humphries

  36. Frequency of Susceptibility Testing for Patients with Persistent Methicillin-Resistant Staphylococcus aureus Bacteremia

    Article • Journal of Clinical Microbiology, October 2013, ASM Journals

    Romney Humphries

  37. A Current Perspective on Daptomycin for the Clinical Microbiologist

    Article • Clinical Microbiology Reviews, October 2013, ASM Journals

    Romney Humphries

  38. New Delhi Metallo-β-Lactamase–producing Enterobacteriaceae , United States

    Article • Emerging Infectious Diseases, June 2013, Centers for Disease Control and Prevention (CDC)

    Romney Humphries

  39. Emergence of daptomycin-non-susceptible enterococci urinary tract isolates

    Article • Journal of Medical Microbiology, April 2013, Society for General Microbiology

    Romney Humphries

  40. Evolution of high-level daptomycin resistance in Enterococcus faecium during daptomycin therapy is associated with limited mutations in the bacterial genome

    Article • Journal of Antimicrobial Chemotherapy, April 2013, Oxford University Press (OUP)

    Romney Humphries

  41. Clinical impact of switching conventional enzyme immunoassay with nucleic acid amplification test for suspected Clostridium difficile-associated diarrhea

    Article • American Journal of Infection Control, April 2013, Elsevier

    Romney Humphries

  42. Colistin MIC Variability by Method for Contemporary Clinical Isolates of Multidrug-Resistant Gram-Negative Bacilli

    Article • Journal of Clinical Microbiology, March 2013, ASM Journals

    Romney Humphries

  43. Ciprofloxacin-Resistant Aeromonas hydrophila Cellulitis following Leech Therapy

    Article • Journal of Clinical Microbiology, January 2013, ASM Journals

    Romney Humphries

  44. Performance of Clostridium difficile Toxin Enzyme Immunoassay and Nucleic Acid Amplification Tests Stratified by Patient Disease Severity

    Article • Journal of Clinical Microbiology, December 2012, ASM Journals

    Romney Humphries

  45. Rapid Detection of Campylobacter Antigen by Enzyme Immunoassay Leads to Increased Positivity Rates

    Article • Journal of Clinical Microbiology, November 2012, ASM Journals

    Romney Humphries

  46. Use of Rapid Diagnostic Tests for Diagnosis of Malaria in the United States: Table 1

    Article • Journal of Clinical Microbiology, November 2012, ASM Journals

    Romney Humphries

  47. Laboratory Tests for the Diagnosis of Clostridium difficile Infections

    Article • Clinical Microbiology Newsletter, October 2012, Elsevier

    Romney Humphries

  48. The emerging problem of linezolid-resistant Staphylococcus

    Article • Journal of Antimicrobial Chemotherapy, September 2012, Oxford University Press (OUP)

    Romney Humphries

  49. Genotypic and Phenotypic Evaluation of the Evolution of High-Level Daptomycin Nonsusceptibility in Vancomycin-Resistant Enterococcus faecium

    Article • Antimicrobial Agents and Chemotherapy, September 2012, ASM Journals

    Romney Humphries

  50. In Vitro Susceptibility Testing of Fluoroquinolone Activity Against Salmonella: Recent Changes to CLSI Standards

    Article • Clinical Infectious Diseases, July 2012, Oxford University Press (OUP)

    Romney Humphries

  51. Should Laboratories Test Methicillin-Resistant Staphylococcus aureus for Elevated Vancomycin Minimum Inhibitory Concentrations by Etest as a Driver of Treatment Changes?

    Article • Clinical Infectious Diseases, May 2012, Oxford University Press (OUP)

    Romney Humphries

  52. De Novo Daptomycin-Nonsusceptible Enterococcal Infections

    Article • Emerging Infectious Diseases, April 2012, Centers for Disease Control and Prevention (CDC)

    Romney Humphries

  53. Epstein–Barr virus‐associated hemophagocytic lymphohistiocytosis in Los Angeles County

    Article • Journal of Medical Virology, March 2012, Wiley

    Romney Humphries

  54. The Changing Epidemiology of Methicillin-Resistant Staphylococcus aureus in Pediatric Wound Cultures

    Article • Clinical Pediatrics, February 2012, SAGE Publications

    Romney Humphries

  55. Case-Control Study ComparingDe Novoand Daptomycin-Exposed Daptomycin-Nonsusceptible Enterococcus Infections

    Article • Antimicrobial Agents and Chemotherapy, January 2012, ASM Journals

    Romney Humphries

  56. Combination therapy with daptomycin, linezolid, and rifampin as treatment option for MRSA meningitis and bacteremia

    Article • Diagnostic Microbiology and Infectious Disease, November 2011, Elsevier

    Romney Humphries

  57. Aerococcus urinae and Trimethoprim-Sulfamethoxazole : Table 1.

    Article • Journal of Clinical Microbiology, September 2011, ASM Journals

    Romney Humphries

  58. Establishing Diagnosis of Haemophilus Parainfluenzae as Etiology of Culture-negative Endocarditis Using DNA Sequence Analysis on Tissue Specimen

    Article • The American Journal of Medicine, July 2011, Elsevier

    Romney Humphries

  59. Lipopolysaccharide Renders Transgenic Mice Expressing Human Serum Amyloid P Component Sensitive to Shiga Toxin 2

    Article • PLoS ONE, June 2011, PLOS

    Romney Humphries, Dr Robert E Hancock

  60. New Delhi Metallo- -Lactamase (NDM-1)-Producing Klebsiella pneumoniae: Case Report and Laboratory Detection Strategies

    Article • Journal of Clinical Microbiology, February 2011, ASM Journals

    Romney Humphries

  61. Sticky situation: localized adherence of enteropathogenicEscherichia colito the small intestine epithelium

    Article • Future Microbiology, November 2010, Future Medicine

    Romney Humphries

  62. Enteric Fever in a 6-Year-Old Traveler Caused by Salmonella enterica Serotypes Typhi and Paratyphi A: Laboratory Detection Strategies and Treatment Options

    Article • Journal of Clinical Microbiology, October 2010, ASM Journals

    Romney Humphries

  63. N‐acetyllactosamine‐induced retraction of bundle‐forming pili regulates virulence‐associated gene expression in enteropathogenic Escherichia coli

    Article • Molecular Microbiology, May 2010, Wiley

    Romney Humphries

  64. The Cpx envelope stress response both facilitates and inhibits elaboration of the enteropathogenic Escherichia coli bundle‐forming pilus

    Article • Molecular Microbiology, May 2010, Wiley

    Romney Humphries

  65. A real-time quantitative PCR assay for evaluating Clostridium difficile adherence to differentiated intestinal Caco-2 cells

    Article • Journal of Medical Microbiology, April 2010, Society for General Microbiology

    Romney Humphries

  66. First Report of Treatment of Anaerobiospirillum succiniciproducens Bloodstream Infection with Levofloxacin

    Article • Journal of Clinical Microbiology, March 2010, ASM Journals

    Romney Humphries

  67. Interactions of Enteropathogenic Escherichia coli with Pediatric and Adult Intestinal Biopsy Specimens during Early Adherence

    Article • Infection and Immunity, July 2009, ASM Journals

    Romney Humphries

  68. From alpha to beta: identification of amino acids required for the N‐acetyllactosamine‐specific lectin‐like activity of bundlin

    Article • Molecular Microbiology, May 2009, Wiley

    Romney Humphries

  69. The phosphate transport system of enteropathogenic Escherichia coli is involved in adherence to the host

    Article • Future Microbiology, October 2008, Future Medicine

    Romney Humphries

  70. The bundlin pilin protein of enteropathogenic Escherichia coli is an N-acetyllactosamine-specific lectin

    Article • Cellular Microbiology, August 2007, Hindawi Publishing Corporation

    Romney Humphries

  71. N-Acetyllactosamine Conjugated to Gold Nanoparticles Inhibits Enteropathogenic Escherichia coli Colonization of the Epithelium in Human Intestinal Biopsy Specimens

    Article • Infection and Immunity, September 2006, ASM Journals

    Romney Humphries

  72. Basis for N-acetyllactosamine-mediated inhibition of enteropathogenic Escherichia coli localized adherence

    Article • Journal of Medical Microbiology, June 2006, Society for General Microbiology

    Romney Humphries