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Hammami S, Dahdeh C, Mamlouk K, Ferjeni S, Maamar E, Hamzaoui Z, Saidani M, Ghedira S, Houissa M, Slim A, Boutiba-Ben Boubaker I. Rectal Carriage of Extended-Spectrum Beta-Lactamase and Carbapenemase Producing Gram-Negative Bacilli in Intensive Care Units in Tunisia. Microb Drug Resist 2017; 23:695-702. [DOI: 10.1089/mdr.2016.0205] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Samia Hammami
- LR99ES09 Laboratoire de Recherche “Résistance aux Antimicrobiens,” Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis, Tunisie
- Faculté des Sciences de Bizerte, Université de Carthage, Bizerte, Tunisie
| | - Chaima Dahdeh
- LR99ES09 Laboratoire de Recherche “Résistance aux Antimicrobiens,” Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis, Tunisie
| | - Kelthoum Mamlouk
- LR99ES09 Laboratoire de Recherche “Résistance aux Antimicrobiens,” Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis, Tunisie
| | - Sana Ferjeni
- LR99ES09 Laboratoire de Recherche “Résistance aux Antimicrobiens,” Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis, Tunisie
| | - Elaa Maamar
- LR99ES09 Laboratoire de Recherche “Résistance aux Antimicrobiens,” Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis, Tunisie
| | - Zeineb Hamzaoui
- LR99ES09 Laboratoire de Recherche “Résistance aux Antimicrobiens,” Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis, Tunisie
| | - Mabrouka Saidani
- LR99ES09 Laboratoire de Recherche “Résistance aux Antimicrobiens,” Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis, Tunisie
- Laboratoire de Microbiologie, Hôpital Charles Nicolle de Tunis, Tunis, Tunisie
| | - Salma Ghedira
- Service de Reanimation Medico-chirurgicale–Hôpital, Charles Nicolle de Tunis, Tunis, Tunisie
| | - Mohamed Houissa
- Service de Reanimation Medico-chirurgicale–Hôpital, Charles Nicolle de Tunis, Tunis, Tunisie
| | - Amin Slim
- LR99ES09 Laboratoire de Recherche “Résistance aux Antimicrobiens,” Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis, Tunisie
- Laboratoire de Microbiologie, Hôpital Charles Nicolle de Tunis, Tunis, Tunisie
| | - Ilhem Boutiba-Ben Boubaker
- LR99ES09 Laboratoire de Recherche “Résistance aux Antimicrobiens,” Faculté de Médecine de Tunis, Université de Tunis El Manar, Tunis, Tunisie
- Laboratoire de Microbiologie, Hôpital Charles Nicolle de Tunis, Tunis, Tunisie
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Najwa D, Salah AM, Yolanda S, Monia K, Dorsaf M, Chiheb BR, Rakia BS, Hajer K, Assia BH, Salah H. Low antibiotic resistance rates and high genetic heterogeneity ofEscherichia coliisolates from urinary tract infections of diabetic patients in Tunisia. J Chemother 2016; 28:89-94. [DOI: 10.1179/1973947814y.0000000229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Molecular characterization of extended spectrum beta-lactamases produced by Klebsiella pneumoniae clinical strains from a Tunisian Hospital. Med Mal Infect 2015; 45:139-43. [DOI: 10.1016/j.medmal.2015.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 12/29/2014] [Accepted: 01/20/2015] [Indexed: 11/22/2022]
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Hammami S, Boutiba-Ben Boubaker I, Saidani M, Lakhal E, Ben Hassen A, Kamoun A, Ghozzi R, Slim A, Ben Redjeb S. Characterization and molecular epidemiology of extended spectrum beta-lactamase producing Enterobacter cloacae isolated from a Tunisian hospital. Microb Drug Resist 2011; 18:59-65. [PMID: 21823989 DOI: 10.1089/mdr.2011.0074] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In 2009, out of the 66 nonrepetitive Enterobacter cloacae collected at Charles Nicolle hospital in Tunisia, 44 were extended spectrum β-lactamase (ESBL) producers. The aim of the current study was to detect and characterize the genes encoding the ESBLs including blaTEM, blaSHV, and blaCTX-M groups by polymerase chain reaction and sequencing. Pulsed-field gel electrophoresis (PFGE) analysis was used to determine the genetic relatedness between isolates. All strains were susceptible to carbapenems. They were resistant to fluoroquinolones, gentamicin, tobramycin, and trimethoprim+sulfamethoxazole but variably resistant to netilmicin, amikacin, and tetracyclines. Sequence analysis of the polymerase chain reaction products revealed the presence of blaCTX-M-15 (39 strains), blaSHV-12 (6 strains), and blaSHV-27 (1 strain). The coexistence of two ESBLs was observed in two isolates harboring, respectively, SHV-12+CTX-M-15 and SHV-27+CTX-M-15. PFGE revealed 36 unrelated profiles. Diffusion of E. cloacae producing CTX-M-15 ESBL in our hospital is the consequence of dissemination of identical or related plasmids harboring the CTX-M-15 gene.
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Affiliation(s)
- Samia Hammami
- Laboratoire de Recherche Résistance aux Antimicrobiens, Faculté de Médecine de Tunis, Tunis, Tunisie.
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Réjiba S, Mercuri PS, Power P, Kechrid A. Emergence and Dominance of CTX-M-15 Extended Spectrum Beta-Lactamase Among Escherichia coli Isolates from Children. Microb Drug Resist 2011; 17:135-40. [DOI: 10.1089/mdr.2010.0098] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Samia Réjiba
- Département des Sciences Biologiques, Faculté des Sciences de Tunis, Université Tunis El-Manar, Tunis, Tunisia
- Laboratoire de Microbiologie, Hôpital d'Enfants, Tunis, Tunisia
| | - Paola Sandra Mercuri
- Laboratoire de Macromolécules Biologiques, Centre d'Ingénierie des Protéines, Université de Liège, Institut de Chimie B6a, Liège, Sart-Tilman, Belgium
| | - Pablo Power
- Laboratoire de Macromolécules Biologiques, Centre d'Ingénierie des Protéines, Université de Liège, Institut de Chimie B6a, Liège, Sart-Tilman, Belgium
| | - Amel Kechrid
- Laboratoire de Microbiologie, Hôpital d'Enfants, Tunis, Tunisia
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Elhani D, Bakir L, Aouni M, Passet V, Arlet G, Brisse S, Weill FX. Molecular epidemiology of extended-spectrum β-lactamase-producing Klebsiella pneumoniae strains in a university hospital in Tunis, Tunisia, 1999–2005. Clin Microbiol Infect 2010; 16:157-64. [DOI: 10.1111/j.1469-0691.2009.03057.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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First detection of CTX-M-28 in a Tunisian hospital from a cefotaxime-resistant Klebsiella pneumoniae strain. ACTA ACUST UNITED AC 2009; 57:343-8. [DOI: 10.1016/j.patbio.2008.07.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2008] [Accepted: 07/03/2008] [Indexed: 11/22/2022]
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Mamlouk K, Boutiba-Ben Boubaker I, Gautier V, Vimont S, Picard B, Ben Redjeb S, Arlet G. Emergence and outbreaks of CTX-M beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae strains in a Tunisian hospital. J Clin Microbiol 2006; 44:4049-56. [PMID: 16957046 PMCID: PMC1698301 DOI: 10.1128/jcm.01076-06] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Sixty-two isolates of Enterobacteriaceae (35 Escherichia coli and 27 Klebsiella pneumoniae isolates) producing CTX-M-type beta-lactamases were collected between March 2000 and June 2003 in different wards of Charles Nicolle Hospital in Tunis (Tunisia). Sequencing identified the bla(CTX-M-15) determinant in 55 isolates and bla(CTX-M-16) in 7 isolates. The CTX-M-15-producing strains were isolated in several wards and consisted mainly of two successive clonal groups of E. coli and a major clonal group of K. pneumoniae. The second clonal group of E. coli belonged to phylogenetic group B2 and harbored more virulence factors than the first clonal group. Among the 22 transconjugants or electroporants obtained with selected E. coli and K. pneumoniae CTX-M-15-producing strains, a predominant plasmid restriction pattern was obtained with 17 isolates. The four CTX-M-16-producing strains of E. coli yielded the same pulsed-field gel electrophoresis (PFGE) pattern, while the three CTX-M-16-producing strains of K. pneumoniae yielded two different PFGE patterns. All of the CTX-M-16-producing isolates were recovered in the pediatric ward and had the same plasmid restriction pattern.
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Affiliation(s)
- Kelthoum Mamlouk
- Laboratoire Résistance aux Antibiotiques, Département de Microbiologie, Faculté de Medecine, Tunis, Tunisia
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