High Prevalence of Gene Among Extended-Spectrum β-Lactamase-Producing Isolates Causing Extraintestinal Infections in Bangladesh

Overview

Journal Antibiotics (Basel)

Specialty Pharmacology

Date 2020 Nov 14

PMID 33187055

Citations 19

Authors

Razib Mazumder

Ahmed Abdullah

Dilruba Ahmed

Arif Hussain

Affiliations

Soon will be listed here.

Abstract

The emergence of multidrug-resistant (MDR) () clonal lineages with high virulence potential is alarming. Lack of sufficient data on molecular epidemiology of such pathogens from countries with high infection burden, such as Bangladesh, hinders management and infection control measures. In this study, we assessed the population structure, virulence potential and antimicrobial susceptibility of clinical isolates from Dhaka, Bangladesh. A high prevalence of MDR (69%) and extended-spectrum β-lactamase production (ESBL) (51%) was found. Most isolates were susceptible to amikacin (95%), meropenem (94%) and nitrofurantoin (89%) antibiotics. A high prevalence of ST131 (22%) and ST95 (9%) followed by ST69 (4%) and ST73 (3%) was observed. Phylogroups B2 (46%), B1 (16%), D (10%) and F (9%) were prominent. (52%) and (5%) were the most prevalent ESBL and carbapenem resistance genes, respectively. Moreover, the predominant pathotype identified was extraintestinal pathogenic (ExPEC) (41%) followed by enteric pathogens (11%). In conclusion, our results suggest the transmission of clonal groups amidst diverse population that are associated with high virulence potential and MDR phenotype. This is of high concern and mandates more efforts towards molecular surveillance of antimicrobial resistance (AMR) in clinically significant pathogens.

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