Aeromonas dhakensis: clinical isolates with high carbapenem resistance

Aeromonas dhakensis is ubiquitous in aquatic habitats and can cause life-threatening septicaemia in humans. However, limited data are available on their antimicrobial susceptibility testing (AST) profiles. Hence, we aimed to examine their AST patterns using clinical (n = 94) and non-clinical (n = 23...

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Päätekijät: Puah, Suat Moi, Khor, Wei Ching, Aung, Kyaw Thu, Lau, Vicky Tien Tien, Puthucheary, S. D., Chua, Kek Heng
Muut tekijät: School of Physical and Mathematical Sciences
Aineistotyyppi: Journal Article
Kieli:English
Julkaistu: 2023
Aiheet:
Linkit:https://hdl.handle.net/10356/165207
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author Puah, Suat Moi
Khor, Wei Ching
Aung, Kyaw Thu
Lau, Vicky Tien Tien
Puthucheary, S. D.
Chua, Kek Heng
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Puah, Suat Moi
Khor, Wei Ching
Aung, Kyaw Thu
Lau, Vicky Tien Tien
Puthucheary, S. D.
Chua, Kek Heng
author_sort Puah, Suat Moi
collection NTU
description Aeromonas dhakensis is ubiquitous in aquatic habitats and can cause life-threatening septicaemia in humans. However, limited data are available on their antimicrobial susceptibility testing (AST) profiles. Hence, we aimed to examine their AST patterns using clinical (n = 94) and non-clinical (n = 23) isolates with dehydrated MicroScan microdilution. Carbapenem resistant isolates were further screened for genes related to carbapenem resistance using molecular assay. The isolates exhibited resistance to imipenem (76.9%), doripenem (62.4%), meropenem (41.9%), trimethoprim/sulfamethoxazole (11.1%), cefotaxime (8.5%), ceftazidime (6%), cefepime (1.7%) and aztreonam (0.9%), whereas all isolates were susceptible to amikacin. Clinical isolates showed significant association with resistance to doripenem, imipenem and meropenem compared to non-clinical isolates. These blacphA were detected in clinical isolates with resistance phenotypes: doripenem (67.2%, 45/67), imipenem (65.9%, 54/82) and meropenem (65.2%, 30/46). Our findings showed that the MicroScan microdilution method is suitable for the detection of carbapenem resistance in both clinical (48.9-87.2%) and non-clinical (4.3-13.0%) isolates. This study revealed that A. dhakensis isolates had relatively high carbapenem resistance, which may lead to potential treatment failure. Continued monitoring of aquatic sources with a larger sample size should be carried out to provide further insights.
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spelling ntu-10356/1652072023-03-20T15:31:39Z Aeromonas dhakensis: clinical isolates with high carbapenem resistance Puah, Suat Moi Khor, Wei Ching Aung, Kyaw Thu Lau, Vicky Tien Tien Puthucheary, S. D. Chua, Kek Heng School of Physical and Mathematical Sciences Singapore Food Agency Science::Biological sciences Aeromonas Dhakensis Carbapenem Aeromonas dhakensis is ubiquitous in aquatic habitats and can cause life-threatening septicaemia in humans. However, limited data are available on their antimicrobial susceptibility testing (AST) profiles. Hence, we aimed to examine their AST patterns using clinical (n = 94) and non-clinical (n = 23) isolates with dehydrated MicroScan microdilution. Carbapenem resistant isolates were further screened for genes related to carbapenem resistance using molecular assay. The isolates exhibited resistance to imipenem (76.9%), doripenem (62.4%), meropenem (41.9%), trimethoprim/sulfamethoxazole (11.1%), cefotaxime (8.5%), ceftazidime (6%), cefepime (1.7%) and aztreonam (0.9%), whereas all isolates were susceptible to amikacin. Clinical isolates showed significant association with resistance to doripenem, imipenem and meropenem compared to non-clinical isolates. These blacphA were detected in clinical isolates with resistance phenotypes: doripenem (67.2%, 45/67), imipenem (65.9%, 54/82) and meropenem (65.2%, 30/46). Our findings showed that the MicroScan microdilution method is suitable for the detection of carbapenem resistance in both clinical (48.9-87.2%) and non-clinical (4.3-13.0%) isolates. This study revealed that A. dhakensis isolates had relatively high carbapenem resistance, which may lead to potential treatment failure. Continued monitoring of aquatic sources with a larger sample size should be carried out to provide further insights. Published version 2023-03-20T05:42:41Z 2023-03-20T05:42:41Z 2022 Journal Article Puah, S. M., Khor, W. C., Aung, K. T., Lau, V. T. T., Puthucheary, S. D. & Chua, K. H. (2022). Aeromonas dhakensis: clinical isolates with high carbapenem resistance. Pathogens, 11(8), 833-. https://dx.doi.org/10.3390/pathogens11080833 2076-0817 https://hdl.handle.net/10356/165207 10.3390/pathogens11080833 35894056 2-s2.0-85137555872 8 11 833 en Pathogens © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). application/pdf
spellingShingle Science::Biological sciences
Aeromonas Dhakensis
Carbapenem
Puah, Suat Moi
Khor, Wei Ching
Aung, Kyaw Thu
Lau, Vicky Tien Tien
Puthucheary, S. D.
Chua, Kek Heng
Aeromonas dhakensis: clinical isolates with high carbapenem resistance
title Aeromonas dhakensis: clinical isolates with high carbapenem resistance
title_full Aeromonas dhakensis: clinical isolates with high carbapenem resistance
title_fullStr Aeromonas dhakensis: clinical isolates with high carbapenem resistance
title_full_unstemmed Aeromonas dhakensis: clinical isolates with high carbapenem resistance
title_short Aeromonas dhakensis: clinical isolates with high carbapenem resistance
title_sort aeromonas dhakensis clinical isolates with high carbapenem resistance
topic Science::Biological sciences
Aeromonas Dhakensis
Carbapenem
url https://hdl.handle.net/10356/165207
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