1. Prevalence and antimicrobial mechanism of carbapenem-resistant Klebsiella pneumoniae and its molecular properties
- Author
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Palanisamy Manikandan, Saleh Aloyuni, Ayoub Al Othaim, Ahmed Ismail, Alaguraj Veluchamy, Bader Alshehri, Ahmed Abdelhadi, and Rajendran Vijayakumar
- Subjects
Klebsiella pneumoniae ,Carbapenem-resistant ,BlaKPC ,BlaNDM ,Science (General) ,Q1-390 - Abstract
Background: The carbapenem-resistant Klebsiella pneumoniae poses a serious threat to public health because carbapenems are used as a final resort to treat K. pneumoniae-mediated infections in humans. Methods: Samples were collected from various clinical specimens including skin swabs, anal swabs, wound swabs, oral swabs, and sputum by the standard method and K. pneumoniae strains were isolated. Biofilm-forming characters were determined. The antibiotic resistance pattern was analyzed by the Kirby–Bauer disk diffusion method. Carbapenem resistance properties were tested using the imipenem and meropenem antibiotics. The carbapenemase genes (blaKPC and blaNDM) were determined. Results: A total of 11 cephalosporin-resistant K. pneumoniae (CRKP) strains were isolated from the samples. The screened CRKP strains exhibited multi-drug resistance and non-susceptible to imipenem, ceftazidime, piperacillin, ceftriaxone, cefazolin, ampicillin, aztreonam, and cefotetan antibiotics. A total of 79.4 % K. pneumoniae isolates showed positive results on String-forming test. About 82.1 % of isolates showed mucoid colonies and 59 % of K. pneumoniae strains formed biofilm (p
- Published
- 2024
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