Healthcare-Associated <i>Legionella</i> Disease: A Multi-Year Assessment of Exposure Settings in a National Healthcare System in the United States

Healthcare facilities are high-risk environments for <i>Legionella</i> disease (LD), including Legionnaires’ disease, but transmission in these settings is often overlooked. We used the LD database at the U.S. Department of Veterans Affairs (VA) national healthcare system to assess the t...

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Main Authors: Meredith Ambrose, Gary A. Roselle, Stephen M. Kralovic, Shantini D. Gamage
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/9/2/264
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author Meredith Ambrose
Gary A. Roselle
Stephen M. Kralovic
Shantini D. Gamage
author_facet Meredith Ambrose
Gary A. Roselle
Stephen M. Kralovic
Shantini D. Gamage
author_sort Meredith Ambrose
collection DOAJ
description Healthcare facilities are high-risk environments for <i>Legionella</i> disease (LD), including Legionnaires’ disease, but transmission in these settings is often overlooked. We used the LD database at the U.S. Department of Veterans Affairs (VA) national healthcare system to assess the type of healthcare exposure for LD cases. Cases were extracted from the database for 1 September 2012 through 31 July 2019, focusing on cases with an overnight stay at a VA facility during the 10-day exposure window prior to symptom onset. Patient medical charts were reviewed for demographics and types of healthcare setting exposure(s). There were 99 LD cases in the cohort: 31.3% were classified as having definite VA exposure, 37.4% were classified as possible VA with inpatient exposure, and 31.3% were classified as possible VA with both inpatient and outpatient exposure. For definite VA LD cases, 67.7% had some type of exposure in the long-term care setting. While 63% of the 99 cases had exposure in the acute care setting only, both the long-term care and acute care settings contributed substantially to the total number of exposure days. A review of patient movement during the exposure period showed the variable and sometimes extensive use of the VA system, and it provides insights useful for epidemiologic investigations and potential preventive actions.
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spelling doaj.art-54c13806106248e6adb37ef248854be32023-12-03T15:02:48ZengMDPI AGMicroorganisms2076-26072021-01-019226410.3390/microorganisms9020264Healthcare-Associated <i>Legionella</i> Disease: A Multi-Year Assessment of Exposure Settings in a National Healthcare System in the United StatesMeredith Ambrose0Gary A. Roselle1Stephen M. Kralovic2Shantini D. Gamage3National Infectious Diseases Service, Specialty Care Services, Veterans Health Administration, Department of Veterans Affairs, Washington, DC 20420, USANational Infectious Diseases Service, Specialty Care Services, Veterans Health Administration, Department of Veterans Affairs, Washington, DC 20420, USANational Infectious Diseases Service, Specialty Care Services, Veterans Health Administration, Department of Veterans Affairs, Washington, DC 20420, USANational Infectious Diseases Service, Specialty Care Services, Veterans Health Administration, Department of Veterans Affairs, Washington, DC 20420, USAHealthcare facilities are high-risk environments for <i>Legionella</i> disease (LD), including Legionnaires’ disease, but transmission in these settings is often overlooked. We used the LD database at the U.S. Department of Veterans Affairs (VA) national healthcare system to assess the type of healthcare exposure for LD cases. Cases were extracted from the database for 1 September 2012 through 31 July 2019, focusing on cases with an overnight stay at a VA facility during the 10-day exposure window prior to symptom onset. Patient medical charts were reviewed for demographics and types of healthcare setting exposure(s). There were 99 LD cases in the cohort: 31.3% were classified as having definite VA exposure, 37.4% were classified as possible VA with inpatient exposure, and 31.3% were classified as possible VA with both inpatient and outpatient exposure. For definite VA LD cases, 67.7% had some type of exposure in the long-term care setting. While 63% of the 99 cases had exposure in the acute care setting only, both the long-term care and acute care settings contributed substantially to the total number of exposure days. A review of patient movement during the exposure period showed the variable and sometimes extensive use of the VA system, and it provides insights useful for epidemiologic investigations and potential preventive actions.https://www.mdpi.com/2076-2607/9/2/264Legionnaires’ disease<i>Legionella</i>healthcare-associatedhealthcare exposure
spellingShingle Meredith Ambrose
Gary A. Roselle
Stephen M. Kralovic
Shantini D. Gamage
Healthcare-Associated <i>Legionella</i> Disease: A Multi-Year Assessment of Exposure Settings in a National Healthcare System in the United States
Microorganisms
Legionnaires’ disease
<i>Legionella</i>
healthcare-associated
healthcare exposure
title Healthcare-Associated <i>Legionella</i> Disease: A Multi-Year Assessment of Exposure Settings in a National Healthcare System in the United States
title_full Healthcare-Associated <i>Legionella</i> Disease: A Multi-Year Assessment of Exposure Settings in a National Healthcare System in the United States
title_fullStr Healthcare-Associated <i>Legionella</i> Disease: A Multi-Year Assessment of Exposure Settings in a National Healthcare System in the United States
title_full_unstemmed Healthcare-Associated <i>Legionella</i> Disease: A Multi-Year Assessment of Exposure Settings in a National Healthcare System in the United States
title_short Healthcare-Associated <i>Legionella</i> Disease: A Multi-Year Assessment of Exposure Settings in a National Healthcare System in the United States
title_sort healthcare associated i legionella i disease a multi year assessment of exposure settings in a national healthcare system in the united states
topic Legionnaires’ disease
<i>Legionella</i>
healthcare-associated
healthcare exposure
url https://www.mdpi.com/2076-2607/9/2/264
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