Update Your ProfileAcademic Title:
Assistant Professor
Primary Appointment:
Epidemiology & Public Health
Email:
Phone (Primary):
(410) 706-0068
Education and Training
- University of Western Ontario, B.Sc., Cell Biology and Anatomy, 2006
- University of British Columbia, Master of Public Health (Global Health), 2011
- University of British Columbia, Department of Pathology and Laboratory Medicine, Certificate in Infection Prevention and Control, 2012
- University of British Columbia, Ph.D., Population and Public Health (Epidemiology), 2016
- University of Maryland School of Medicine, Postdoctoral Fellowship, Infectious Disease Epidemiology, 2018
Research/Clinical Keywords
Hospital epidemiology and infection control, epidemiologic methods in infectious diseases, transmission of multidrug-resistant organisms, emerging pathogens, health of healthcare workers, global health
Highlighted Publications
Harris AD, Pineles L, Johnson JK, O’Hara LM, Smith LL, French I, Rubin J, Perlmutter R, Heller A, Klein L, Thoguru J. Prevalence of Acinetobacter baumannii and Candida auris in Patients Receiving Mechanical Ventilation. JAMA. 2023 Oct 12.
Nadimpalli G, Johnson JK, Magder LS, Haririan A, Stevens D, Harris AD, O’Hara LM. Efficacy of a continuously active disinfectant wipe on the environmental bioburden in the intensive care unit: A randomized controlled study. Infection Control & Hospital Epidemiology. 2023 Jul 3:1-8.
Nadimpalli G, O’Hara LM, Magder LS, Johnson JK, Haririan A, Pineles L, Goodman KE, Baghdadi JD, Pineles BL, Harris AD. Comorbidities associated with 30-day readmission following index coronavirus disease 2019 (COVID-19) hospitalization: A retrospective cohort study of 331,136 patients in the United States. Infection Control & Hospital Epidemiology. 2023 Aug;44(8):1325-33.
O’Hara LM, Johnson JK, French I, Paszkiewicz G, Harris AD. Comparison of two swab types for recovery of Staphylococcus aureus and Candida auris from gloves and gowns. Infection Control & Hospital Epidemiology. 2023 May 4:1-3.
Jacob JT, Baker JM, Fridkin SK, Lopman BA, Steinberg JP, Christenson RH, King B, Leekha S, O’Hara LM, Rock P, Schrank GM. Risk factors associated with SARS-CoV-2 seropositivity among US health care personnel. JAMA Network Open. 2021 Mar 1;4(3):e211283-.
O'Hara LM, Nguyen MH, Calfee DP, Miller LG, Pineles L, Magder LS, Johnson JK, Morgan DJ, Rasko DA, Harris AD, CDC Prevention Epicenters Program. Risk factors for transmission of carbapenem-resistant Enterobacterales to healthcare personnel gloves and gowns in the USA. Journal of Hospital Infection. 2021 Mar 1;109:58-64.
O’Hara LM, Calfee DP, Miller LG, Pineles L, Magder LS, Johnson JK, Morgan DJ, Harris AD. Optimizing contact precautions to curb the spread of antibiotic-resistant bacteria in hospitals: a multicenter cohort study to identify patient characteristics and healthcare personnel interactions associated with transmission of methicillin-resistant Staphylococcus aureus. Clinical Infectious Diseases. 2019 Sep 13;69(Supplement_3):S171-7.
O’Hara LM, Blanco N, Leekha S, Stafford KA, Slobogean GP, Ludeman E, Harris AD, CDC Prevention Epicenters Program. Design, implementation, and analysis considerations for cluster-randomized trials in infection control and hospital epidemiology: A systematic review. Infection Control & Hospital Epidemiology. 2019 Jun;40(6):686-92.
O’Hara LM, Caturegli I, O’Hara NN, O’Toole RV, Dalury DF, Harris AD, Manson TT. What publicly available quality metrics do hip and knee arthroplasty patients care about most when selecting a hospital in Maryland: a discrete choice experiment. BMJ open. 2019 May 1;9(5):e028202.
Blanco N, O’Hara LM, Harris AD. Transmission pathways of multidrug-resistant organisms in the hospital setting: a scoping review. Infection Control & Hospital Epidemiology. 2019 Mar 6:1-0.
O’Hara LM, Thom KA, Preas MA. Update to the Centers for Disease Control and Prevention (CDC) and the Healthcare Infection Control Practices Advisory Committee (HICPAC) Guideline for the Prevention of Surgical Site Infection, 2017: A summary, review and strategies for implementation. American Journal of Infection Control. 2018 Mar 7.
Alsaggaf R, O’Hara LM, Stafford K, Leekha S, Harris AD. Quasi-Experimental Studies in the Fields of Infection Control and Antibiotic Resistance, 10 Years Later: A Systematic Review for the CDC Prevention Epicenter Program. Infection Control & Hospital Epidemiology. 2018;39(2):170-17.
O’Hara LM, Zungu M, Malotle MM, Barker SJ, Darwin L, Bryce EA, FitzGerald JM, Yassi A. The neglected burden of tuberculosis among healthcare workers in Free State, South Africa: A decade long cohort study. BMC Infectious Diseases. 2017 Aug 7;17(1):547.
O’Hara LM, Masnick M, Leekha S, Jackson SS, Blanco N, Harris AD. Indirect vs. direct standardization methods for reporting healthcare-associated infections: An analysis of central line-associated bloodstream infections in Maryland. Infection Control & Hospital Epidemiology. 2017 June: 1-4.
O’Hara LM, Yassi A, Bryce EA, Engelbrecht MC, Janse van Rensburg A, Zungu M, Nophale LE, FitzGerald JM. Infection control and tuberculosis in health workers: An assessment of 28 hospitals in Free State, South Africa. International Journal of Tuberculosis and Lung Disease. 2017 Mar 1;21(3):320-326.
O’Hara LM, Morgan DJ, Pineles L, Li S, Sulis C, Bowling J, Drees M, Jacob J, Anderson D, Warren D, Harris AD. Is There a Correlation Between Infection Control Performance and Other Hospital Quality Measures? Infection Control & Hospital Epidemiology. 2017 Apr 5:1-4. doi: 10.1017/ice.2017.27
Matuka O, Singh TS, Bryce E, Yassi A, Kgasha O, Zungu M, Kyaw K, Malotle M, Renton K, O'Hara L. Pilot study to detect airborne Mycobacterium tuberculosis exposure in a South African public healthcare facility outpatient clinic. Journal of Hospital Infection. 2015 Mar 1;89(3):192-6.
Grants and Contracts
Canadian Institutes for Health Research Banting Postdoctoral Fellowship Recipient