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Screening of mcr-1 among Gram-Negative Bacteria from Different Clinical Samples from ICU Patients in Alexandria, Egypt: One-Year Study Cover

Screening of mcr-1 among Gram-Negative Bacteria from Different Clinical Samples from ICU Patients in Alexandria, Egypt: One-Year Study

Open Access
|Mar 2022

Figures & Tables

Fig. 1

Phylogenetic tree of four Klebsiella pneumoniae isolates and the positive control “PCMKP-01” harboring mcr-1.1 based on the wzi typing.
Phylogenetic tree of four Klebsiella pneumoniae isolates and the positive control “PCMKP-01” harboring mcr-1.1 based on the wzi typing.

Resistance profiles of different isolates of Gram-negative bacteria_

AntimicrobialKlebsiella pneumoniae (n = 301)Escherichia coli (n = 109)Enterobacter cloaclae complex (n = 14)Enterobacter asburiae* (n = 1)Pseudomonas aeruginosa (n = 55)
ResistantResistantResistantResistantResistant
No.%No.%No.%No.%No.%
Ceftazidime27892.368678.90964.29002240.00
Cefepime26387.388477.061071.43001934.55
Imipenem20668.4465.50214.29002443.64
Meropenem20668.4476.42321.43002341.82
Amikacin18059.8043.6700001934.55
Gentamicin17758.803633.03642.86002443.64
Tobramycin23277.083834.86321.43002443.64
Ciprofloxacin21772.106963.30321.43002647.27
Trimethoprim/Sulfamethoxazole23176.745954.13642.8600

Characteristics of six bacterial isolates harboring mcr-1_

OrganismIsolate namek-typeSample Sourcemcr-1 amplified by first set of primersmcr-1amplified by second set of primersPatient genderFEPCAZIPMMEMAKGNTOBCIPSXTMIC value in µg/ml*
P. aeruginosaMPPS-05BALmcr-1.1mcr-1.1FRRRIRRRR≤ 0.5
K. pneumoniaeMPKP-07K9Mini BALmcr-1.1FRRRRRRRRS≤ 0.5
K. pneumoniaeMPKP-03k58BALmcr-1.1mcr-1.1MRRRRRIRRR4
K. pneumoniaeMPKP-04k58Spinal fluidmcr-1.1mcr-1.1FRRRRRRRIR4
K. pneumoniaeMPKP-06k58Sputummcr-1.1mcr-1.1MRRRRRSRRR4
E. coliMPEC-02Blood culturemcr-1.1mcr-1.1MRRSSSRRIR≥ 4

Beta-lactamase genes distribution among the mcr-1 positive isolates_

OrganismIsolate namemcr-1 amplified by first set of primersmcr-1 amplified by second set of primersESBL GeneSerine carbapenemasesgenesMetallo-beta-lactamase genes
blaCTX-MblaKPCblaOXA-48blaVIMblaNDM-1
P. aeruginosaMPPS-05mcr-1.1mcr-1.1++
K. pneumoniaeMPKP-07mcr-1.1++
K. pneumoniaeMPKP-03mcr-1.1mcr-1.1+++
K. pneumoniaeMPKP-04mcr-1.1mcr-1.1++
K. pneumoniaeMPKP-06mcr-1.1mcr-1.1+
E. coliMPEC-02mcr-1.1mcr-1.1+NTNTNTNT
DOI: https://doi.org/10.33073/pjm-2022-011 | Journal eISSN: 2544-4646 | Journal ISSN: 1733-1331
Language: English
Page range: 83 - 90
Submitted on: Nov 10, 2021
Accepted on: Feb 12, 2022
Published on: Mar 30, 2022
Published by: Polish Society of Microbiologists
In partnership with: Paradigm Publishing Services
Publication frequency: 4 times per year

© 2022 Amira Elbaradei, Mahrous S. Sayedahmed, Gamal El-Sawaf, Sherine M. Shawky, published by Polish Society of Microbiologists
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.