Role of CTX-M-15 gene in spread of extended-spectrum beta-lactamases among immunocompetent patients in Ghana
African Journal of Laboratory Medicine
| Field | Value | |
| Title | Role of CTX-M-15 gene in spread of extended-spectrum beta-lactamases among immunocompetent patients in Ghana | |
| Creator | Obeng-Nkrumah, Noah Tawiah-Abrokwa, Gloria D. Owusu, Enid Duah, Francisca Oduro-Mensah, Daniel Kwao, Paul Evariste, Bako Labi, Appiah-Korang | |
| Description | Background: Patients with faecal carriage of extended-spectrum beta-lactamases (ESBL)-producing Enterobacterales serve as reservoirs and sources of dissemination and infection.Objective: This report examined immunocompetent patients for faecal carriage of ESBL-producing Enterobacterales in a district care hospital setting in Ghana.Methods: Between March 2019 and May 2020, cross-sectional sampling was performed to enrol patients and conduct questionnaire-structured interviews for factors that predispose patients to ESBL faecal carriage. Faecal samples from study patients were quantified for ESBL-producing Enterobacterales. The ESBL genes were characterised by polymerase chain reaction and sequencing.Results: The overall proportion of ESBL faecal carriage was 35.5% (n = 38/107). The blaCTX-M gene, mostly CTX-M-15, was detected in 89.5% (n = 34/38) of the ESBL-producing isolates. The other ESBL types included blaSHV (n = 3) and blaOXA (n = 1). The CTX-M-15-positive isolates, when present in a faecal sample compared to the non-ESBL-CTX-M-15 isolates, constituted the predominant faecal Enterobacterales, with significantly higher colony counts than all other enterobacteria in that sample. In multivariate regression, independent risk factors for faecal carriage of ESBL-producing Enterobacterales were hospitalisation in the past year, infections since admission, use of antibiotics in the past 6 weeks, and admission from another hospital.Conclusion: The study found that CTX-M-15-producing isolates were the predominant faecal Enterobacterales, and that further investigations are needed to determine the reasons behind this dominance.What this study adds: The CTX-M-15-producing isolates dominance in this study shows the misuse and abuse of antibiotics in an African medical facility and indicates the potential role of immunity in controlling ESBL spread, which is to be investigated further. | |
| Publisher | AOSIS | |
| Date | 2023-11-20 | |
| Identifier | 10.4102/ajlm.v12i1.2135 | |
| Source | African Journal of Laboratory Medicine; Vol 12, No 1 (2023); 10 pages 2225-2010 2225-2002 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://ajlmonline.org/index.php/ajlm/article/view/2135/2780
https://ajlmonline.org/index.php/ajlm/article/view/2135/2781
https://ajlmonline.org/index.php/ajlm/article/view/2135/2782
https://ajlmonline.org/index.php/ajlm/article/view/2135/2783
https://ajlmonline.org/index.php/ajlm/article/view/2135/2831
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