Awards
GOLD LEVEL · DECEMBER 2024
CDPH Antimicrobial Stewardship Honor Roll
Recognized by the California Department of Public Health for optimizing antimicrobial use and preventing resistance and C. difficile infections.
Featured project: transitions of care. Partnering with street medicine to support patients with complicated infections who have substance use disorders or are experiencing homelessness.
Watch the project presentationRecent Publications
2026
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Feeling the Vibes: An Investigation Into Resident Antibiotic Prescribing Practices
Dickson DA, Jordan JM, Vijayan T.
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You've Got a Friend in Me: Curbside Questions Infectious Diseases Clinicians Ask Infectious Diseases Pharmacists
Davis MR, Kufel JE, Kufel WD, McCreary EK, Oleksiuk LM, Ours R, Pham CU, Ross JK, Smith EA, Trisler MJ, et al.
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Clinical impact of plasma cell-free DNA metagenomic next-generation sequencing testing in neonatal and infant populations
Pithia N, Kesavan K, Lee A, Yang S, Kaur I.
Antimicrob Steward Healthc Epidemiol. 2026;6(1):e201 PubMed DOI
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Clinical utility of serial plasma cell-free DNA metagenomic next-generation sequencing assays
Kaur I, Shaw B, Multani A, Malhotra S, Dong HV, Lukose C, Prabaker K, Saleh T, Sim YB, Tymchuk CN, et al. (incl. Uslan DZ).
Infect Control Hosp Epidemiol. 2026;47(3):325-327 PubMed DOI
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Discrepancy between reference phenotypic and genotypic detection of metallo-β-lactamase in Aeromonas spp
von Bredow B, Trejo M, Ward KW, Trieu KP, Santellan CA, Garner OB, Yang S, Chandrasekaran S.
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Emergence of a novel genotype of extensively drug-resistant [organism] carrying [AmpC gene] in diverse patient populations, Los Angeles, 2024-2025
Gonzalez-Ferrer S, Shaw B, Fung L, Landovitz RJ, Uslan DZ, Yang S.
Antimicrob Steward Healthc Epidemiol. 2026;6(1):e19 PubMed DOI
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Multicenter performance evaluation of the Simplexa C. auris Direct assay for the detection of Candida auris colonization in bilateral axilla/groin swabs
Sepehri S, Schindel B, Silbert S, Rowe L, Marchese A, Willison E, Garner O, Chandrasekaran S, Berry GJ, Chandrasekaran A, et al.
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Cefepime and Mortality-A Dosing Problem, Not a Drug Problem
Uslan DZ, Smith EA.
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Fosmanogepix treatment for coccidioidomycosis under an expanded access program
Cohen SH, Allyn P, Chow FC, Rathe J, Nanayakkara DD, Hutfles G, Vijayan T, Smith EA, Saling CF, Ilges D, et al.
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Response to: Pediatric Coccidioidomycosis: Disease Spectrum and Implications for Antifungal Therapy
Malhotra S, Krogstad P.
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Successful Bacteriophage Treatment of a Recalcitrant Intra-Abdominal Infection Caused by Multidrug-Resistant Pseudomonas aeruginosa in a 2-Year-Old Child
Malhotra S, Salazar KC, Pithia N, Kaur I, Adachi K, Ramachandar N, Terwilliger AL, Maresso A, Venick RS, McDiarmid SV, et al.
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Clinical and operational impact of a four-year-long bronchoscopy-associated pseudo-outbreak of [nontuberculous mycobacteria]
Prabaker K, Zhuo R, Malhotra S, Yang S, Match C, Turay S, Bluntson E, Walton S, Dogan T, Uslan D.
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Infection Surveillance at 50: Are We Still Measuring What Matters?
Uslan DZ.
2025
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Reducing Antimicrobial Use at the End of Life-When to Open the Door
Vijayan T.
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Incorporating microbial cell-free DNA testing into healthcare-associated invasive fungal infection surveillance: benefits and challenges
Uslan DZ, Kaur I, Garner OB, Yang S.
Infect Control Hosp Epidemiol. 2025;46(5):445-448 Review PubMed DOI
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Real-world clinical impact of plasma cell-free DNA metagenomic next-generation sequencing assay
Kaur I, Shaw B, Multani A, Pham C, Malhotra S, Smith E, Adachi K, Allyn P, Bango Z, Beaird OE, et al. (incl. Chandrasekaran S, Chan L, Garner O, Kanatani M, Uslan D, Vijayan T).
Infect Control Hosp Epidemiol. 2025;46(5):504-511 PubMed DOI
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Defining antimicrobial susceptibility testing methods and breakpoints among Achromobacter species
Harris H, Stambaugh H, Jacobs E, Bhalodi A, Chandrasekaran S, Cole NC, Lu J, Tekle T, Humphries R, Simner PJ.
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Outbreak of New Delhi metallo-β-lactamase carbapenemase-producing Pseudomonas aeruginosa infections in a Southern California hospital
Garrigues JM, Gray HK, Ison RP, Uslan DZ, Lima A, Gonzalez-Ferrer S, Trejo M, Zhuo R, Matysiak Match CJ, Ulloa ER, et al. (incl. Prabaker K, Garner OB, Chandrasekaran S).
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Anti-SARS-CoV-2 Immunoglobulin G Antibody Titers in Contemporary Lots of Intravenous Immunoglobulin and Fresh Frozen Plasma Compared With COVID-19 Convalescent Plasma
Smith EA, Javier GM, Multani A, Beaird OE, Gaynor P, Yanagimoto-Ogawa L, Schaenman J, Allyn P, Alfarhat G, Vijayan T, et al. (incl. Garner O).
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Coccidioidal Meningitis in Children: Should Intravenous Liposomal Amphotericin be Added to Fluconazole Therapy?
Malhotra S, Krogstad P.
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Comparative Effectiveness of Long-Acting Lipoglycopeptides vs Standard-of-Care Antibiotics in Serious Bacterial Infections
Goodman-Meza D, Weiss RE, Poimboeuf ML, Feng J, Vijayan T, Martinello M, Matthews GV, Dore GJ.
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Pearls and Pitfalls of Intrathecal Amphotericin B Therapy for Refractory Coccidioidal Meningitis in Children: An Illustrative Pediatric Case Series
Malhotra S, Adachi K, Fallah A, Johnson R, Kaur I, McCarty J, Ross L, Krogstad P.
Pediatr Infect Dis J. 2025;44(11):e414-e418 Case report PubMed DOI
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Guiding Clostridioides difficile Infection Prevention Efforts in a Hospital Setting With AI
Tang S, Shepard S, Clark R, Ötles E, Udegbunam C, Tran J, Seiler M, Ortwine J, Waljee AK, Nagel J, et al. (incl. Baang J).
2024
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Executive Summary: State-of-the-Art Review: Use of Antimicrobials at the End of Life
Karlin D, Pham C, Furukawa D, Kaur I, Martin E, Kates O, Vijayan T.
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State-of-the-Art Review: Use of Antimicrobials at the End of Life
Karlin D, Pham C, Furukawa D, Kaur I, Martin E, Kates O, Vijayan T.
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Elucidating the Clinical Interpretation and Impact of a Positive Plasma Cell-Free DNA Metagenomics Test Result-A Single Center Retrospective Study
Vinh Dong H, Saleh T, Kaur I, Yang S.
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Informing estimates of probability of Clostridioides difficile infection for testing and treatment: expert consensus from a modified-Delphi procedure
Baghdadi JD, Wessel M, Dubberke ER, Lydecker A, Claeys KC, Alonso C, Coffey KC, Durkin M, Gonzales-Luna AJ, Guh AY, et al. (incl. Vijayan T).
Antimicrob Steward Healthc Epidemiol. 2024;4(1):e168 PubMed DOI
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A simple and sensitive test for Candida auris colonization, surveillance, and infection control suitable for near patient use
Banik S, Ozay B, Trejo M, Zhu Y, Kanna C, Santellan C, Shaw B, Chandrasekaran S, Chaturvedi S, Vejar L, et al.
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Cluster of extensively drug-resistant Shigella sonnei carrying blaCTX-M-15 in Los Angeles, California, 2023 to 2024
Caldera JR, Shaw B, Uslan DZ, Yang S.
Am J Infect Control. 2024;53(4):524-526 Case report PubMed DOI
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Factors Associated With Poor Clinical and Microbiologic Outcomes in Candida auris Bloodstream Infection: A Multicenter Retrospective Cohort Study
Jimenez A, Rosa R, Ayoub S, Guran R, Arenas S, Valencia N, Stabile JC, Estepa AT, Parekh DJ, Ferreira T, et al. (incl. Prabaker KK).
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Microbiology Profiles and Antibiotic Susceptibility in Pediatric Microbial Keratitis
Cheng MY, Chea PD, Latifi G, Garner OB, Deng SX, Fung SSM.
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Implementation of contact precautions for multidrug-resistant organisms in the post-COVID-19 pandemic era: An updated national Emerging Infections Network (EIN) survey
Howard-Anderson JR, Gottlieb LB, Beekmann SE, Polgreen PM, Jacob JT, Uslan DZ.
Infect Control Hosp Epidemiol. 2024;45(6):703-708 PubMed DOI
2023
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Infections and antimicrobial prescribing in patients hospitalized with coronavirus disease 2019 (COVID-19) during the first pandemic wave
Chan L, Gupta S, Sacco AJ, Kasule SN, Chaffin H, Feller FF, Mi L, Lim ES, Seville MT.
Antimicrob Steward Healthc Epidemiol. 2023;3(1):e75 PubMed DOI
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The PEST (Pathology, Epidemiology, Severity, Treatment) approach to optimizing antimicrobial therapy
Davar K, Vijayan T.
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Using an Antibiogram Profile to Improve Infection Control and Rational Antimicrobial Therapy in an Urban Hospital in The Gambia, Strategies and Lessons for Low- and Middle-Income Countries
Darboe S, Mirasol R, Adejuyigbe B, Muhammad AK, Nadjm B, De St Maurice A, Dogan TL, Ceesay B, Umukoro S, Okomo U, et al. (incl. Garner OB).
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Variation in Treatment of Pediatric Tuberculosis Infection in Different Provider Settings
Malhotra S, Dasgupta-Tsinikas S, Yumul J, Kaneta K, Lenz A, Kizzee R, Bihm D, Jung C, Neely M, Guevara RE, et al.
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Clinical Whole-Genome Sequencing Assay for Rapid Mycobacterium tuberculosis Complex First-Line Drug Susceptibility Testing and Phylogenetic Relatedness Analysis
Shaw B, von Bredow B, Tsan A, Garner O, Yang S.
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Clinical next-generation sequencing assay combining full-length gene amplification and shotgun sequencing for the detection of CMV drug resistance mutations
von Bredow B, Caldera JR, Cerón S, Chan JL, Gray HK, Garner OB, Yang S.
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Domestically Acquired NDM-1-Producing Pseudomonas aeruginosa, Southern California, USA, 2023
Gray HK, Beaird OE, Smith EA, Schaenman JM, Yang S.
Emerg Infect Dis. 2023;29(11):2382-2385 Case report PubMed DOI
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Extensively Drug-Resistant Shigella flexneri 2a, California, USA, 2022
Caldera JR, Yang S, Uslan DZ.
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Nosocomial infections by diverse carbapenemase-producing Aeromonas hydrophila associated with combination of plumbing issues and heat waves
Gray HK, Bisht A, Caldera JR, Fossas Braegger NM, Cambou MC, Sakona AN, Beaird OE, Uslan DZ, Walton SC, Yang S.
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Preliminary evidence for sustained efficacy of CFTR modulator therapy with concomitant rifabutin administration
Hong E, Parsons SM, Sass L, Epstein C, Chan L, Brown C, Eshaghian PH, Beringer PM.
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Successful Treatment of Prolonged Severe Acute Respiratory Syndrome Coronavirus 2 Infection in Patients With Immunodeficiency With Extended Nirmatrelvir/Ritonavir: Case Series
Breeden M, Aitken SL, Baang JH, Gravelin M, Kaul DR, Lauring AS, Petty LA, Gregg KS.
2022
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Case Report and Genomic Analysis of Cefiderocol-Resistant Escherichia coli Clinical Isolates
Price TK, Davar K, Contreras D, Ward KW, Garner OB, Simner PJ, Yang S, Chandrasekaran S.
Am J Clin Pathol. 2022;157(2):257-265 Case report PubMed DOI
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Clinical, microbiological, and genomic characteristics of clade-III Candida auris colonization and infection in southern California, 2019-2022
de St Maurice A, Parti U, Anikst VE, Harper T, Mirasol R, Dayo AJ, Garner OB, Prabaker KK, Yang S.
Infect Control Hosp Epidemiol. 2022;44(7):1093-1101 PubMed DOI
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Neutralizing Monoclonal Antibodies for Coronavirus Disease 2019 (COVID-19) in Pregnancy: A Case Series
Richley M, Rao RR, Afshar Y, Mei J, Mok T, Vijayan T, Weinstein S, Pham CU, Madamba J, Shin CS, et al.
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On variants and vaccines: The effectiveness of Covid-19 monoclonal antibody therapy during two distinct periods in the pandemic
Srinivasan V, Weinstein SE, Bhimani A, Clemons NC, Dinolfo M, Shin CS, Grier J, Lopez A, Braggs J, Boucher J, et al. (incl. Garner OB, Vijayan T).
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Utilizing new subdefinitions to improve the identification of preventable central-line-associated bloodstream infections (CLABSIs)
Hsueh L, de St Maurice A, Uslan DZ.
Infect Control Hosp Epidemiol. 2022;44(3):523-524 Letter/Commentary/Editorial PubMed DOI
2021
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Antibiotic prophylaxis in beta-lactam allergic patients undergoing cesarean and vaginal delivery: An opportunity for stewardship
Furukawa D, Douglas N, Hsu J, Davis M, Pham C, Kanatani M, Vijayan T.
Infect Control Hosp Epidemiol. 2021;43(10):1514-1515 PubMed DOI
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Evaluation of antibiotic escalation in response to nurse-driven inpatient sepsis screen
Furukawa D, Dieringer TD, Wong MD, Tong JT, Cader IA, Wisk LE, Han MA, Gupta SM, Kerbel RB, Uslan DZ, et al.
Antimicrob Steward Healthc Epidemiol. 2021;1(1):e59 PubMed DOI
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Pharmacist driven antibiotic redosing in the emergency department
Payne-Cardona M, San Luis VA, Aazami R, Dermendjieva M, Erin M, Kirkwood J, Tong C, Marks G, Smith EA, Torbati SS, et al.
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Clinical Impact of Metagenomic Next-Generation Sequencing of Plasma Cell-Free DNA for the Diagnosis of Infectious Diseases: A Multicenter Retrospective Cohort Study
Hogan CA, Yang S, Garner OB, Green DA, Gomez CA, Dien Bard J, Pinsky BA, Banaei N.
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Finding a needle in a haystack: The hidden costs of asymptomatic testing in a low incidence setting
Srinivasan V, Gohil SK, Abeles SR, Yokoe DS, Cohen SH, Ramirez-Avila L, Prabaker KK, de St Maurice AM.
Infect Control Hosp Epidemiol. 2021;43(10):1525-1526 PubMed DOI
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Randomized Trial Evaluating Clinical Impact of RAPid IDentification and Susceptibility Testing for Gram-negative Bacteremia: RAPIDS-GN
Banerjee R, Komarow L, Virk A, Rajapakse N, Schuetz AN, Dylla B, Earley M, Lok J, Kohner P, Ihde S, et al. (incl. Garner OB, Chandrasekaran S, Kanatani M).
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Validation, Implementation, and Clinical Utility of Whole Genome Sequence-Based Bacterial Identification in the Clinical Microbiology Laboratory
Price TK, Realegeno S, Mirasol R, Tsan A, Chandrasekaran S, Garner OB, Yang S.
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Clinical Whole Genome Sequencing for Clarithromycin and Amikacin Resistance Prediction and Subspecies Identification of Mycobacterium abscessus
Realegeno S, Mirasol R, Garner OB, Yang S.
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Deceiving Phenotypic Susceptibility Results on a Klebsiella pneumoniae Blood Isolate Carrying Plasmid-Mediated AmpC Gene
Realegeno S, Ward K, Garner OB, Yang S.
Front Cell Infect Microbiol. 2021;11:561880 Case report PubMed DOI
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Genomic Characterizations of Clade III Lineage of Candida auris, California, USA
Price TK, Mirasol R, Ward KW, Dayo AJ, Hilt EE, Chandrasekaran S, Garner OB, de St Maurice A, Yang S.
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Infectious Keratitis Isolates and Susceptibility in Southern California
Gupta K, Unhale R, Garner OB, Deng SX, M Fung SS.
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Investigation of Phylogeny and Drug Resistance Mechanisms of Elizabethkingia anophelis Isolated from Blood and Lower Respiratory Tract
Larkin PMK, Mortimer L, Malenfant JH, Gaynor P, Contreras DA, Garner OB, Yang S, Allyn P.
Microb Drug Resist. 2021;27(9):1259-1264 Case report PubMed DOI
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Multicenter Clinical Evaluation of Vitek 2 Meropenem-Vaborbactam for Susceptibility Testing of Enterobacterales and Pseudomonas aeruginosa
Dwivedi HP, Franklin S, Chandrasekaran S, Garner O, Traczewski MM, Beasley D, Procop GW, Tuohy M, Wilson D, Bala Y, et al.
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Risk Factors for Klebsiella Infections among Hospitalized Patients with Preexisting Colonization
Rao K, Patel A, Sun Y, Vornhagen J, Motyka J, Collingwood A, Teodorescu A, Baang JH, Zhao L, Kaye KS, et al.
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The Path of More Resistance: a Comparison of National Healthcare Safety Network and Clinical Laboratory Standards Institute Criteria in Developing Cumulative Antimicrobial Susceptibility Test Reports and Institutional Antibiograms
Viloria Winnett A, Srinivasan V, Davis M, Vijayan T, Uslan DZ, Garner OB, de St Maurice A.
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Utilization of whole genome sequencing for resolution of discrepant Mycobacterium tuberculosis drug susceptibility results: A case report
Realegeno S, Adeyiga O, Winston DJ, Beaird OE, Garner OB, Yang S.
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Monoclonal Antibodies for Early Treatment of COVID-19 in a World of Evolving SARS-CoV-2 Mutations and Variants
Pogue JM, Lauring AS, Gandhi TN, Marshall VD, Eschenauer GA, Nagel JL, Baang JH, Zhou S, Valesano AL, Petty LA.
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Updates and Opinions in Diagnosis and Treatment of Clostridioides difficile in Pediatrics
Malhotra S, Mohandas S.
Curr Treat Options Pediatr. 2021;7(4):203-216 Review PubMed DOI