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Darboe S, Mirasol R, Adejuyigbe B, Muhammad AK, Nadjm B, De St. Maurice A, Dogan TL, Ceesay B, Umukoro S, Okomo U, Nwakanma D, Roca A, Secka O, Forrest K, Garner OB. 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. Antibiotics (Basel) 2023; 12:790. [PMID: 37107152 PMCID: PMC10135392 DOI: 10.3390/antibiotics12040790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/10/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Antimicrobial resistance is a global health threat and efforts to mitigate it is warranted, thus the need for local antibiograms to improve stewardship. This study highlights the process that was used to develop an antibiogram to monitor resistance at a secondary-level health facility to aid empirical clinical decision making in a sub-Saharan African county. This retrospective cross-sectional descriptive study used 3 years of cumulative data from January 2016 to December 2018. Phenotypic data was manually imputed into WHONET and the cumulative antibiogram constructed using standardized methodologies according to CLSI M39-A4 guidelines. Pathogens were identified by standard manual microbiological methods and antimicrobial susceptibility testing was performed using Kirby-Bauer disc diffusion method according to CLSI M100 guidelines. A total of 14,776 non-duplicate samples were processed of which 1163 (7.9%) were positive for clinically significant pathogens. Among the 1163 pathogens, E. coli (n = 315) S. aureus (n = 232), and K. pneumoniae (n = 96) were the leading cause of disease. Overall, the susceptibility for E. coli and K. pneumoniae from all samples were: trimethoprim-sulfamethoxazole (17% and 28%), tetracycline (26% and 33%), gentamicin (72% and 46%), chloramphenicol (76 and 60%), and ciprofloxacin (69% and 59%), and amoxicillin/clavulanic (77% and 54%) respectively. Extended spectrum beta-lactamase (ESBL) resistance was present in 23% (71/315) vs. 35% (34/96) respectively. S. aureus susceptibility for methicillin was 99%. This antibiogram has shown that improvement in combination therapy is warranted in The Gambia.
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Affiliation(s)
- Saffiatou Darboe
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
| | - Ruel Mirasol
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Babapelumi Adejuyigbe
- David Geffen School of Medicine, University of California, UCLA, Los Angeles, CA 90095, USA
| | - Abdul Khalie Muhammad
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
| | - Behzad Nadjm
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
- University College London Hospital NHS Foundation Trust, London NW1 2BU, UK
| | - Annabelle De St. Maurice
- Department of Pediatrics, Division of Infectious Diseases, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
| | - Tiffany L. Dogan
- Department of Clinical Epidemiology and Infection Prevention, University of California, UCLA Health, Los Angeles, CA 90095, USA
| | - Buntung Ceesay
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
| | - Solomon Umukoro
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
| | - Uduak Okomo
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
| | - Davis Nwakanma
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
| | - Anna Roca
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
| | - Ousman Secka
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
| | - Karen Forrest
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Banjul P.O. Box 273, The Gambia
| | - Omai B. Garner
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
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Verma T, Aggarwal A, Singh S, Sharma S, Sarma SJ. Current challenges and advancements towards discovery and resistance of antibiotics. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131380] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Occurrence of mcr-mediated colistin resistance in Salmonella clinical isolates in Thailand. Sci Rep 2021; 11:14170. [PMID: 34238964 PMCID: PMC8266838 DOI: 10.1038/s41598-021-93529-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/25/2021] [Indexed: 01/01/2023] Open
Abstract
Nontyphoidal Salmonella, an important zoonotic pathogen and a major cause of foodborne illnesses, could be a potential reservoir of plasmids harbouring mobile colistin resistance gene (mcr). This study reported, for the first time, a high rate of mcr-carrying Salmonella clinical isolates (3.3%, 24/724) in Thailand, associated with mcr-3 gene (3.0%, 22/724) in S. 4,[5],12:i:-(15.4%, 4/26), S. Typhimurium (8.8%, 5/57), and S. Choleraesuis (5.6%, 13/231). Remarkably, the increasing trends of colistin and extended-spectrum cephalosporin resistances have displayed a high agreement over the years, with a dramatic rise in the mcr-carrying Salmonella from 1.1% (6/563) during 2005–2007 to 11.2% (18/161) during 2014–2018 when CTX-M-55 became abundant. Clonal and plasmid analysis revealed that the self-transferable IncA/C and a novel hybrid IncA/C-FIIs MDR plasmids were the major vehicles to disseminate both mcr-3 and blaCTX-M55 genes among diverse Salmonella strains, from as early as 2007. To our knowledge the occurrence of mcr-3 and the co-existence of it with blaCTX-M-55 in S. Choleraesuis are reported here for the first time, leading to clinical concern over the treatment of the invasive salmonellosis. This study provides evidence of the potential reservoirs and vectors in the dissemination of the mcr and highlights the co-selection by colistin and/or cephalosporins.
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Utilization of cumulative antibiograms for public health surveillance: Trends in Escherichia coli and Klebsiella pneumoniae susceptibility, Massachusetts, 2008-2018. Infect Control Hosp Epidemiol 2020; 42:169-175. [PMID: 32847644 DOI: 10.1017/ice.2020.395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Antimicrobial resistance is an urgent public health threat. Identifying trends in antimicrobial susceptibility can inform public health policy at the state and local levels. OBJECTIVE To determine the ability of statewide antibiogram aggregation for public health surveillance to identify changes in antimicrobial resistance trends. DESIGN Facility-level trend analysis. METHODS Crude and adjusted trend analyses of the susceptibility of Escherichia coli and Klebsiella pneumoniae to particular antibiotics, as reported by aggregated antibiograms, were examined from 2008 through 2018. Multivariable regression analyses via generalized linear mixed models were used to examine associations between hospital characteristics and trends of E. coli and K. pneumoniae susceptibility to ciprofloxacin and ceftriaxone. RESULTS E. coli and K. pneumoniae showed inverse trends in drug susceptibility over time. K. pneumoniae susceptibility to fluoroquinolones increased by 5% between 2008 and 2018 (P < .05). In contrast, E. coli susceptibility declined during the same period to ceftriaxone (6%), gentamicin (4%), and fluoroquinolones (4%) (P < .05). When compared to Boston hospitals, E. coli isolates from hospitals in other regions had a >4% higher proportion of susceptibility to ciprofloxacin and a >3% higher proportion of susceptibility to ceftriaxone (P < .05). Isolates of K. pneumoniae had higher susceptibility to ciprofloxacin (>3%) and ceftriaxone (>1.5%) in all regions when compared to Boston hospitals (P < .05). CONCLUSIONS Cumulative antibiograms can be used to monitor antimicrobial resistance, to discern regional and facility differences, and to detect changes in trends. Furthermore, because the number of years that hospitals contributed reports to the state-level aggregate had no significant influence on susceptibility trends, other states should not be discouraged by incomplete hospital compliance.
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Sundareshan V, Khardori N. Diagnostic Microbiology from the Beginning to the Future: Regional Antibiograms as Public Health Tools to Slow Down Antibiotic Resistance. Indian J Pediatr 2020; 87:48-50. [PMID: 31808126 DOI: 10.1007/s12098-019-03124-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 11/06/2019] [Indexed: 11/29/2022]
Abstract
Infectious diseases is the only area of medicine where we can isolate the cause and study it in the laboratory under conditions similar to human body. Once isolated, we are able to determine the most optimal drug to treat it. Unfortunately, it is also the only specialty where after making truly wondrous strides we find ourselves at the crossroads of a public health crisis in the form of ongoing antibiotic resistance. Among the factors responsible for the current status, is the suboptimal utilization of the diagnostic microbiology laboratory. In this review authors provide a short historical perspective of diagnostic microbiology. The focus of discussion is the generation and utilization of cumulative antibiograms at the institutional and regional levels and discuss the pitfalls in large national databases with respect to the day-to-day patient care. This public health tool to slow down antibiotic resistance happens to be low-tech and inexpensive.
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Affiliation(s)
- Vidya Sundareshan
- Infectious Diseases, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Nancy Khardori
- Infectious Diseases, Solid Organ Transplant Program at Sentara Norfolk General Hospital, Norfolk, Virginia, USA.
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Guarascio AJ, Brickett LM, Porter TJ, Lee ND, Gorse EE, Covvey JR. Development of a Statewide Antibiogram to Assess Regional Trends in Antibiotic-Resistant ESKAPE Organisms. J Pharm Pract 2017; 32:19-27. [DOI: 10.1177/0897190017735425] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background: Hospitals and other facilities utilize antibiograms as tools for optimal antibiotic selection. Currently, no measures compare broad trends on the regional level, despite interest for more comprehensive data, particularly for antibiotic-resistant ESKAPE organisms. Objective: To collect and compare regional health-care facility antibiogram data for ESKAPE organisms to form a cumulative antibiogram. Methods: Health-care facilities were identified using the publicly accessible Pennsylvania Department of Health web site. Facilities were contacted by phone from June 2015 to 2016 to ascertain participation/consent for the study. An electronic questionnaire ascertained baseline facility characteristics. Facilities provided quantitative antibiotic susceptibility data via antibiograms. Antibiogram data were synthesized as cumulative susceptibilities, stratified by urban/suburban versus rural location. Results: Forty-five facilities were included in the study (n = 18 urban/suburban, n = 27 rural). The overall prevalence of methicillin-resistant S aureus was 41.5%, stratified at 40.6% and 43.3% in urban/suburban and rural facilities, respectively ( P < .001). Vancomycin-resistant Enterococcus prevalence was 18.8% overall, with 27.7% in urban/suburban and 14.0% in rural facilities ( P < .001). Generally, lower susceptibility rates were found for high-utilization beta-lactams across gram-negative organisms in urban/suburban facilities. Conclusions: Development of a regional cumulative antibiogram that targets key ESKAPE pathogens is feasible, while observed trends may help aid future antimicrobial stewardship efforts.
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Affiliation(s)
- Anthony J. Guarascio
- Division of Pharmacy Practice, Duquesne University School of Pharmacy, Pittsburgh, PA, USA
- Allegheny General Hospital, Pittsburgh, PA, USA
| | | | | | | | | | - Jordan R. Covvey
- Division of Pharmaceutical, Administrative and Social Sciences, Duquesne University School of Pharmacy, Pittsburgh, PA, USA
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Canut-Blasco A, Calvo J, Rodríguez-Díaz JC, Martínez-Martínez L. [Antimicrobial susceptibility cumulative reports]. Enferm Infecc Microbiol Clin 2015; 34:524-30. [PMID: 25962661 DOI: 10.1016/j.eimc.2015.03.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 03/27/2015] [Indexed: 11/26/2022]
Abstract
Cumulative reports on antimicrobial susceptibility tests data are important for selecting empirical treatments, as an educational tool in programs on antimicrobial use, and for establishing breakpoints defining clinical categories. These reports should be based on data validated by clinical microbiologists using diagnostic samples (not surveillance samples). In order to avoid a bias derived from including several isolates obtained from the same patient, it is recommended that, for a defined period, only the first isolate is counted. A minimal number of isolates per species should be presented: a figure of >=30 isolates is statistically acceptable. The report is usually presented in a table format where, for each cell, information on clinically relevant microorganisms-antimicrobial agents is presented. Depending on particular needs, multiple tables showing data related to patients, samples, services or special pathogens can be prepared.
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Affiliation(s)
| | - Jorge Calvo
- Servicio de Microbiología, Hospital Universitario Marqués de Valdecilla-IDIVAL, Santander, España
| | - Juan Carlos Rodríguez-Díaz
- Servicio de Microbiología, Hospital General Universitario de Alicante, Universidad Miguel Hernández, Alicante, España
| | - Luis Martínez-Martínez
- Servicio de Microbiología, Hospital Universitario Marqués de Valdecilla-IDIVAL, Santander, España; Departamento de Biología Molecular, Universidad de Cantabria, Santander, España.
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Var SK, Hadi R, Khardori NM. Evaluation of regional antibiograms to monitor antimicrobial resistance in Hampton Roads, Virginia. Ann Clin Microbiol Antimicrob 2015; 14:22. [PMID: 25890362 PMCID: PMC4397712 DOI: 10.1186/s12941-015-0080-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 03/18/2015] [Indexed: 01/25/2023] Open
Abstract
We studied recent antibiograms (2010 to 2011) from 12 hospitals in the Hampton Roads area, Virginia, that refer patients to a tertiary-care facility affiliated with Eastern Virginia Medical School. The data was compiled into a regional antibiogram, and sensitivity rates of common isolates from the tertiary-care facility (central) were compared to those of referring hospitals grouped by locale. Staphylococcus aureus was the most common Gram- positive and E. coli the most common Gram- negative organism grown from clinical samples in the area. Overall 53% of S.aureus isolates were resistant to oxacillin. There was a broad scatter of MIC (minimum inhibitory concentration) for vancomycin within the susceptibility range, and MIC of 4 μg/mL was reported in 2012. Penicillin resistance was seen in 50% and erythromycin resistance in 45% of Streptococcus pneumoniae. Vancomycin resistance was seen in 75% of Enterococcus faecium and 2% of Enterococcus faecalis respectively. Acinetobacter baumannii was the most resistant Gram negative organism in the data compiled. Among the Escherichia coli, 26%, 44% and 52%were resistant to Trimethoprim/Sulfamethoxazole ( SXT) ampicillin- sulbactam and ampicillin respectively. We found significant differences in methodology, interpretation and antibiotic panels used by area laboratories. Based on these findings, we are now prospectively following resistance patterns in the tertiary-care facility, sharing data, and creating a consistent approach to antimicrobial susceptibility testing in the region.
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Affiliation(s)
- Susette K Var
- Department of Internal Medicine, Eastern Virginia Medical School, 825 Fairfax Ave, Hofheimer Hall, Ste 572, Norfolk, VA 23507, USA.
| | - Rouba Hadi
- Department of Internal Medicine, Eastern Virginia Medical School, 825 Fairfax Ave, Hofheimer Hall, Ste 572, Norfolk, VA 23507, USA.
| | - Nancy M Khardori
- Department of Internal Medicine, Eastern Virginia Medical School, 825 Fairfax Ave, Hofheimer Hall, Ste 572, Norfolk, VA 23507, USA.
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Using Individual Animal Susceptibility Test Results in Bovine Practice. Vet Clin North Am Food Anim Pract 2015; 31:163-74, vii. [DOI: 10.1016/j.cvfa.2014.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Morfin-Otero R, Tinoco-Favila JC, Sader HS, Salcido-Gutierrez L, Perez-Gomez HR, Gonzalez-Diaz E, Petersen L, Rodriguez-Noriega E. Resistance trends in gram-negative bacteria: surveillance results from two Mexican hospitals, 2005-2010. BMC Res Notes 2012; 5:277. [PMID: 22676813 PMCID: PMC3407022 DOI: 10.1186/1756-0500-5-277] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 06/07/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hospital-acquired infections caused by multiresistant gram-negative bacteria are difficult to treat and cause high rates of morbidity and mortality. The analysis of antimicrobial resistance trends of gram-negative pathogens isolated from hospital-acquired infections is important for the development of antimicrobial stewardship programs. The information obtained from antimicrobial resistant programs from two hospitals from Mexico will be helpful in the selection of empiric therapy for hospital-acquired gram-negative infections. FINDINGS Two thousand one hundred thirty two gram-negative bacteria collected between January 2005 and December 2010 from hospital-acquired infections occurring in two teaching hospitals in Mexico were evaluated. Escherichia coli was the most frequently isolated gram-negative bacteria, with >50% of strains resistant to ciprofloxacin and levofloxacin. Klebsiella spp. showed resistance rates similar to Escherichia coli for ceftazidime (33.1% vs 33.2%), but exhibited lower rates for levofloxacin (18.2% vs 56%). Of the samples collected for the third most common gram-negative bacteria, Pseudomonas aeruginosa, >12.8% were resistant to the carbapenems, imipenem and meropenem. The highest overall resistance was found in Acinetobacter spp. Enterobacter spp. showed high susceptibility to carbapenems. CONCLUSIONS E. coli was the most common nosocomial gram-negative bacilli isolated in this study and was found to have the second-highest resistance to fluoroquinolones (>57.9%, after Acinetobacter spp. 81.2%). This finding represents a disturbing development in a common nosocomial and community pathogen.
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Affiliation(s)
- Rayo Morfin-Otero
- Instituto de Patología Infecciosa y Experimental, Centro Universitario Ciencias de la Salud, Universidad de Guadalajara, Calle Hospital 308, Colonia El Retiro, CP 44280, Guadalajara, Jalisco, Mexico.
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Checkley SL, Campbell JR, Waldner CL, Dowling PM, Chirino-Trejo M. A retrospective diagnostic laboratory survey of antimicrobial resistance in fecal Escherichia coli isolated from spring calves in western Canada. THE CANADIAN VETERINARY JOURNAL = LA REVUE VETERINAIRE CANADIENNE 2010; 51:1283-1286. [PMID: 21286332 PMCID: PMC2957040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Diagnostic laboratory data on antimicrobial susceptibility of Escherichia coli isolated from feces of spring calves were evaluated retrospectively for the 5-year period from 1999 to 2003. The antimicrobials to which resistance was most prevalent were tetracycline, ampicillin, and trimethoprim/sulphamethoxazole. Resistance to 3 or more antimicrobials was found in 52.5% [95% confidence interval (CI): 47.9 to 56.6] of the E. coli isolates. Incomplete records reduced the usefulness of the diagnostic laboratory data for surveillance. Standardized patient information submitted by veterinary clinics would increase the value of this data for surveillance.
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Affiliation(s)
- Sylvia L Checkley
- University of Calgary, Faculty of Veterinary Medicine, NW, Calgary, Alberta T2N 4N1, USA.
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Lakshmi V. NEED FOR NATIONAL/REGIONAL GUIDELINES AND POLICIES IN INDIA TO COMBAT ANTIBIOTIC RESISTANCE. Indian J Med Microbiol 2008. [DOI: 10.1016/s0255-0857(21)01923-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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