0000000000020491

AUTHOR

Abdelaziz Touati

showing 3 related works from this author

Characterization of Carbapenem-Resistant Enterobacteriaceae Clinical Isolates in Al Thawra University Hospital, Sana'a, Yemen

2020

International audience; Objective: The aim of this study was to investigate the resistance mechanisms of carbapenem-resistant Enterobacteriaceae clinical strains recovered from Al Thawra University Hospital, Sana'a, Yemen. Methods: A total of 27 isolates showing decreased susceptibility to carbapenems were obtained from different clinical specimens in Al Thawra Hospital, Sana'a, Yemen. Strains were identified by Matrix Assisted Laser Desorption Ionization Time-Of-Flight spectroscopy. Susceptibility to antibiotics was determined by the disk diffusion method on Mueller Hinton agar. Carbapenemases-encoding genes, extended-spectrum β-lactamases (ESBLs), and plasmid-mediated quinolone resistance…

MaleYemenKlebsiella pneumoniaeGene ExpressionCarbapenem-resistant enterobacteriaceaeQuinolonesmedicine.disease_causeHospitals Universitychemistry.chemical_compoundChildEscherichia coli InfectionsAged 80 and over0303 health sciencesbiologyEnterobacteriaceae InfectionsMiddle AgedEnterobacteriaceae3. Good healthAnti-Bacterial AgentsBacterial Typing TechniquesMueller-Hinton agarKlebsiella pneumoniae[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyNDM-1-likeChild PreschoolFemalePlasmidsMicrobiology (medical)AdultcarbapenemasesImmunologyMicrobial Sensitivity TestsMicrobiologybeta-Lactam Resistancebeta-LactamasesMicrobiology03 medical and health sciencesEnterobacteriaceaeEnterobacter cloacaemedicineEscherichia coliHumansTypingEscherichia coli030304 developmental biologyAgedPharmacology030306 microbiologyInfantbiochemical phenomena metabolism and nutritionbiology.organism_classificationClone CellsKlebsiella InfectionsCarbapenem-Resistant EnterobacteriaceaechemistryCarbapenemsMultilocus sequence typingbacteriaEnterobacter cloacaeMultilocus Sequence TypingOXA-48-like
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Staphylococcal cassette chromosome mec typing and mecA sequencing in methicillin-resistant staphylococci from Algeria: a highly diversified element w…

2016

Genetic mechanisms of methicillin resistance are still relevant in staphylococci. The aims of this study are to assess the possible exchanges of staphylococcal cassette chromosome mec (SCCmec) among isolates of methicillin-resistant staphylococci (MRS) and to check for known or new mutations in mecA DNA. A total of 35 MRS non-repetitive isolates were recovered, including 20 Staphylococcus haemolyticus, 7 Staphylococcus aureus, 4 Staphylococcus sciuri, 2 Staphylococcus saprophyticus and 1 isolate each of Staphylococcus xylosus and Staphylococcus lentus. Only 16 of the 35 strains were assigned to known SCCmec types: 7 SCCmec VII, 6 SCCmec IV and 3 SCCmec III, with possible horizontal transfer…

0301 basic medicineMicrobiology (medical)Methicillin-Resistant Staphylococcus aureusSettore MED/07 - Microbiologia E Microbiologia ClinicaStaphylococcus030106 microbiologyMicrobial Sensitivity TestsBiologymedicine.disease_causebeta-LactamsMicrobiologyBacterial geneticsMicrobiology03 medical and health sciencesBacterial ProteinsmedicineMissense mutationHumansPenicillin-Binding ProteinsTypingmecAGeneticsMutationSCCmecChromosomeGeneral Medicinerespiratory systembiochemical phenomena metabolism and nutritionChromosomes BacterialStaphylococcal Infectionsbacterial infections and mycosesStaphylococcus aureusStaphylococcus aureus; Methicillin Resistance; mecAAlgeriaHorizontal gene transferMutationStaphylococcus aureuMethicillin ResistanceJournal of medical microbiology
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Descriptive epidemiology of nasal carriage of Staphylococcus aureus and methicillin-resistant Staphylococcus aureus among patients admitted to two he…

2014

Aim: To evaluate nasal carriage rate and variables associated with Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA) in patients admitted in two healthcare facilities. Results: S. aureus was isolated from 159 (26%) of the enrolled patients. Methicillin-susceptible S. aureus was isolated from 150 (24.5%) patients, and MRSA was isolated from 9 (1.5%). Cancer and previous hospitalization were associated with a significantly higher frequency of nasal S. aureus carriage among the patients admitted to the general hospital and the nephrology department, respectively. MRSA isolates were heterogeneous with respect to their staphylococcal cassette chromosome mec element (SC…

Microbiology (medical)AdultMaleMethicillin-Resistant Staphylococcus aureusImmunologyMRSA epidemiology carriage AlgeriaNosemedicine.disease_causeSettore MED/42 - Igiene Generale E ApplicataMicrobiologyMicrobiologyMedicineNasal carriageHumansGeneral hospitalAgedPharmacologyNephrology departmentbusiness.industrySCCmecbiochemical phenomena metabolism and nutritionDescriptive epidemiologyMiddle AgedStaphylococcal Infectionsbacterial infections and mycosesMethicillin-resistant Staphylococcus aureusCarriageStaphylococcus aureusGenes BacterialAlgeriaFemaleMethicillin ResistancebusinessMicrobial drug resistance (Larchmont, N.Y.)
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