Phenotypic and Molecular Characterization of AmpC beta-lactamase Enzyme Producing Escherichia coli and Klebsiella species Isolated from A Tertiary Care Hospital in Bangladesh.
Mymensingh Med J
; 29(4): 895-900, 2020 Oct.
Article
en En
| MEDLINE
| ID: mdl-33116093
This cross-sectional study was conducted to determine the prevalence of AmpC beta-lactamase enzyme producing Escherichia coli and Klebsiella species in a tertiary care hospital of Bangladesh, as well as to observe the patterns of antibiotic resistance and AmpC beta-lactamase resistance genes among them. This study was conducted in the Department of Microbiology of Dhaka Medical College, Dhaka, Bangladesh from January 2015 to December 2015. Total 166 Escherichia coli, Klebsiella pneumoniae and Klebsiella oxytoca were isolated from urine, wound swab, pus, sputum and blood samples of patients of Dhaka Medical College Hospital. Antibiotic susceptibility test was performed by disk-diffusion technique. AmpC beta-lactamase producers were detected phenotypically by Modified three-dimensional test (MTDT). AmpC beta-lactamase genes (DHA, ACC, EBC, CIT, MOX, FOX) among the cefoxitin resistant Escherichia coli and Klebsiella species were detected by polymerase chain reaction (PCR). Sixty seven cefoxitin resistant Escherichia coli, Klebsiella pneumoniae and Klebsiella oxytoca were isolated during disk-diffusion technique. Among the 67 cefoxitin resistant strains, 30(44.78%) AmpC beta-lactamase producers were detected by MTDT and 59(88.06%) were detected by PCR. The dominant genotype found was CIT (62.69%) followed by DHA (53.73%). The results of this study showed high proportion of AmpC beta- lactamase enzyme producing Escherichia coli and Klebsiella species in Bangladesh. Regular surveillance of antibiotic resistance should be done in every tertiary care hospital to prevent spread of these strains.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Escherichia coli
/
Klebsiella
Tipo de estudio:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Límite:
Humans
País/Región como asunto:
Asia
Idioma:
En
Revista:
Mymensingh Med J
Asunto de la revista:
MEDICINA
Año:
2020
Tipo del documento:
Article
Pais de publicación:
Bangladesh