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Araos R, Smith RM, Styczynski A, Sánchez F, Acevedo J, Maureira L, Paredes C, González M, Rivas L, Spencer-Sandino M, Peters A, Khan A, Sepulveda D, Wettig LR, Rioseco ML, Usedo P, Soto PR, Huidobro LA, Ferreccio C, Park BJ, Undurraga E, D'Agata EMC, Jara A, Munita JM. High Burden of Intestinal Colonization With Antimicrobial-Resistant Bacteria in Chile: An Antibiotic Resistance in Communities and Hospitals (ARCH) Study. Clin Infect Dis 2023; 77:S75-S81. [PMID: 37406045 DOI: 10.1093/cid/ciad283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023] Open
Abstract
BACKGROUND Antimicrobial resistance is a global threat, heavily impacting low- and middle-income countries. This study estimated antimicrobial-resistant gram-negative bacteria (GNB) fecal colonization prevalence in hospitalized and community-dwelling adults in Chile before the coronavirus disease 2019 pandemic. METHODS From December 2018 to May 2019, we enrolled hospitalized adults in 4 public hospitals and community dwellers from central Chile, who provided fecal specimens and epidemiological information. Samples were plated onto MacConkey agar with ciprofloxacin or ceftazidime added. All recovered morphotypes were identified and characterized according to the following phenotypes: fluoroquinolone-resistant (FQR), extended-spectrum cephalosporin-resistant (ESCR), carbapenem-resistant (CR), or multidrug-resistant (MDR; as per Centers for Disease Control and Prevention criteria) GNB. Categories were not mutually exclusive. RESULTS A total of 775 hospitalized adults and 357 community dwellers were enrolled. Among hospitalized subjects, the prevalence of colonization with FQR, ESCR, CR, or MDR-GNB was 46.4% (95% confidence interval [CI], 42.9-50.0), 41.2% (95% CI, 37.7-44.6), 14.5% (95% CI, 12.0-16.9), and 26.3% (95% CI, 23.2-29.4). In the community, the prevalence of FQR, ESCR, CR, and MDR-GNB colonization was 39.5% (95% CI, 34.4-44.6), 28.9% (95% CI, 24.2-33.6), 5.6% (95% CI, 3.2-8.0), and 4.8% (95% CI, 2.6-7.0), respectively. CONCLUSIONS A high burden of antimicrobial-resistant GNB colonization was observed in this sample of hospitalized and community-dwelling adults, suggesting that the community is a relevant source of antibiotic resistance. Efforts are needed to understand the relatedness between resistant strains circulating in the community and hospitals.
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Affiliation(s)
- Rafael Araos
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
- Multidisciplinary Initiative for Collaborative Research in Bacterial Resistance (MICROB-R), Santiago, Chile
| | - Rachel M Smith
- US Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Ashley Styczynski
- US Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Felipe Sánchez
- Instituto de Sociología, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Johanna Acevedo
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Centro de Control y Prevención del Cáncer (CECAN) FONDAP 152220002, Santiago, Chile
| | - Lea Maureira
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Catalina Paredes
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Maite González
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Lina Rivas
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Multidisciplinary Initiative for Collaborative Research in Bacterial Resistance (MICROB-R), Santiago, Chile
| | - Maria Spencer-Sandino
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Multidisciplinary Initiative for Collaborative Research in Bacterial Resistance (MICROB-R), Santiago, Chile
| | - Anne Peters
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Multidisciplinary Initiative for Collaborative Research in Bacterial Resistance (MICROB-R), Santiago, Chile
| | - Ayesha Khan
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Dino Sepulveda
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Loreto Rojas Wettig
- Hospital Puerto Montt, Facultad de Medicina, Universidad San Sebastián, Chile
| | - María Luisa Rioseco
- Hospital Puerto Montt, Facultad de Medicina, Universidad San Sebastián, Chile
| | - Pedro Usedo
- Hospital Regional de Antofagasta, Universidad de Antofagasta, Chile
| | | | - Laura Andrea Huidobro
- Departamento de Ciencias Preclínicas, Facultad de Medicina, Universidad Católica del Maule, Talca, Chile
| | - Catterina Ferreccio
- Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
- Facultad de Medicina, Departamento de Salud Pública, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Benjamin J Park
- US Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Eduardo Undurraga
- Multidisciplinary Initiative for Collaborative Research in Bacterial Resistance (MICROB-R), Santiago, Chile
- Escuela de Gobierno, Pontificia Universidad Católica de Chile, Santiago, Chile
- Research Center for Integrated Disaster Risk Management (CIGIDEN), Santiago, Chile
- CIFAR Azrieli Global Scholars program, CIFAR, Toronto, Canada
| | - Erika M C D'Agata
- Division of Infectious Diseases, Warren Alpert School of Medicine, Brown University, Providence, Rhode Island, USA
| | - Alejandro Jara
- Facultad de Matemáticas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jose M Munita
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Multidisciplinary Initiative for Collaborative Research in Bacterial Resistance (MICROB-R), Santiago, Chile
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