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Clonal diversity of Acinetobacter baumannii from diabetic patients in Saudi Arabian hospitals

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posted on 2023-08-30, 14:02 authored by Abdulrahman A. Alsultan, Elsayed Aboulmagd, Benjamin A. Evans, Sebastian G. B. Amyes
Carbapenem-resistant Acinetobacter baumannii (CR-AB) represents a major health-care problem causing high rates of morbidity and mortality. This study investigated the clonality of CR-AB isolated from diabetic patients from different regions in Saudi Arabia as well as the relatedness of the β lactamases genes. A total of 64 non-repetitive CR-AB clinical isolates were collected from 16 different regions in Saudi Arabia from intensive care patients. Isolates were identified phenotypically by Vitek 2 compact system and genotypically by amplification of blaOXA-51-like gene. The target sequences were amplified by PCR and the clonal diversity of the isolates was explored by PFGE. Resistance studies revealed that the prevalence of imipenem and meropenem resistance was 92% and 96%, respectively, while the vast majority of the isolates were susceptible to tigecycline and colistin. In addition, blaVIM and blaOXA-23 were the most prevalent genes in the isolates under investigation while ISAba1 was the most dominant insertion sequence. PFGE results showed 13 clusters; clone H was dominant comprising 20 isolates from four hospitals followed by clones C and F comprising 11 isolates each from 3 and 6 hospitals, respectively. Moreover, the current study signified the clonal diversity of CR-AB in Saudi Arabia and showed the ability of some clones to infect patients in many different cities.

History

Refereed

  • Yes

Volume

63

Issue number

11

Page range

1460-1466

Publication title

Journal of Medical Microbiology

ISSN

1473-5644

Publisher

Microbiology Society

File version

  • Accepted version

Language

  • eng

Legacy posted date

2014-12-08

Legacy creation date

2019-06-24

Legacy Faculty/School/Department

ARCHIVED Faculty of Science & Technology (until September 2018)

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