1. Clonal diversity and detection of carbapenem resistance encoding genes among multidrug-resistant Acinetobacter baumannii isolates recovered from patients and environment in two intensive care units in a Moroccan hospital
- Author
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Abdelouahed Bait, Yassine Benlahlou, Jordi Vila, Mohammed Frikh, Jean Uwingabiye, Nawfal Doghmi, Charki Haimeur, Ignasi Roca, Abdelhay Lemnouer, Bouchra Belefquih, Mostafa Elouennass, Tarek Alouane, Azeddine Ibrahimi, Lhoussain Louzi, Adil Maleb, Jalal Kassouati, and Fatna Bssaibis
- Subjects
0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,030106 microbiology ,OXA genes ,Drug resistance ,lcsh:Infectious and parasitic diseases ,Microbiology ,03 medical and health sciences ,Medicina intensiva ,0302 clinical medicine ,Medical microbiology ,Intensive care ,Pulsed-field gel electrophoresis ,medicine ,Multidrug-resistant ,Intensive care unit ,lcsh:RC109-216 ,Critical care medicine ,Pharmacology (medical) ,blaNDM-1 gene ,030212 general & internal medicine ,Typing ,biology ,Public Health, Environmental and Occupational Health ,biochemical phenomena, metabolism, and nutrition ,bacterial infections and mycoses ,biology.organism_classification ,3. Good health ,Acinetobacter baumannii ,Multiple drug resistance ,Infectious Diseases ,Pathogenic bacteria ,Bacteris patògens ,Multilocus sequence typing ,Acinetobacter Baumannii - Abstract
Carbapenem-resistant Acinetobacter baumannii has recently been defined by the World Health Organization as a critical pathogen. The aim of this study was to compare clonal diversity and carbapenemase-encoding genes of A. baumannii isolates collected from colonized or infected patients and hospital environment in two intensive care units (ICUs) in Morocco. The patient and environmental sampling was carried out in the medical and surgical ICUs of Mohammed V Military teaching hospital from March to August 2015. All A. baumannii isolates recovered from clinical and environmental samples, were identified using routine microbiological techniques and Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry. Antimicrobial susceptibility testing was performed using disc diffusion method. The carbapenemase-encoding genes were screened for by PCR. Clonal relatedness was analyzed by digestion of the DNA with low frequency restriction enzymes and pulsed field gel electrophoresis (PFGE) and the multi locus sequence typing (MLST) was performed on two selected isolates from two major pulsotypes. A total of 83 multidrug-resistant A. baumannii isolates were collected: 47 clinical isolates and 36 environmental isolates. All isolates were positive for the bla OXA51-like and bla OXA23-like genes. The coexistence of bla NDM-1 /bla OXA-23-like and bla OXA 24-like /bla OXA-23-like were detected in 27 (32.5%) and 2 (2.4%) of A. baumannii isolates, respectively. The environmental samples and the fecally-colonized patients were significantly identified (p
- Published
- 2017