An emerging threat of ceftriaxone-resistant non-typhoidal salmonella in South India: Incidence and molecular profile

Conclusion: This study shows that ceftriaxone resistance is mainly mediated by β-lactamases such as ESBL and AmpC. As the incidence of ceftriaxone resistance is rising gradually over the years, it is imperative to monitor the AMR in this species.
Source: Indian Journal of Medical Microbiology - Category: Microbiology Authors: Source Type: research

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Publication date: Available online 5 December 2019Source: Journal of Global Antimicrobial ResistanceAuthor(s): Nicolás F. Cordeiro, Andrés Iriarte, Lucía Yim, Laura Betancor, José Alejandro Chabalgoity, Teresa Camou, Rafael Vignoli
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research
Fluoroquinolones are used to treat serious bacterial infections, including those caused by Escherichia coli and Salmonella enterica. The emergence of plasmid-mediated quinolone resistance (PMQR) represent a new challenge to the successful treatment of Gram-negative infections. As part of a long-term strategy to generate a reference database of closed plasmids from antimicrobial resistant foodborne bacteria, we performed long-read sequencing of 11 E. coli isolates from retail meats that were non-susceptible to ciprofloxacin. Each of the isolates had PMQR genes, including qnrA1, qnrS1, and qnrB19. The four qnrB19 genes were ...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Conclusions/SignificanceAlthough the prevalence of ESBL-producingSalmonella isolates was low in CAR, we found that a single IncHI2 plasmid-carryingblaCTX-M-15 was widespread amongSalmonella serotypes from sub-Saharan Africa, which is of concern.
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
In this study we adopted whole genome sequencing (WGS) to determine the genetic relationship and antimicrobial resistance of S. enterica strains isolated from a poultry breeding enterprise that consists of one breeding chicken farm, one egg hatchery and one commercial chicken farm. A total of 148 S. enterica including 147 S. Enteritidis strains were isolated from 2100 fecal swab samples, with 16 (5.3%, 16/300) from breeding chicken farm, 38 (4.2%, 38/900) from egg hatchery and 94 (10.4%, 94/900) from commercial chicken farm. WGS revealed that all 147 S. Enteritidis strains belonged to ST11, and further divided into 4 diffe...
Source: Veterinary Microbiology - Category: Veterinary Research Source Type: research
This study, for the first time to the best of our knowledge, isolated and characterized S. maltophilia from leafy green vegetables produced by hydroponic farms and from a hydroponic farming facility in Singapore. Eleven S. maltophilia isolates were obtained from three types of leafy green vegetables (sweet basil, kale, and parsley) and from the nutrient solution used by a hydroponic farm. The antimicrobial resistance (AMR), biofilm-forming ability, and resistance to UV and quaternary ammonium compound (QAC) treatments were investigated, as was the fate of S. maltophilia in a simulated leafy green vegetable environment duri...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Conclusions: High resistance to ciprofloxacin and azithromycin observed in Ahmedabad may be due to the increased use of these two antibiotics in the public and private sectors, respectively. The need of the hour is to identify a representative sample of laboratories from both the public and the private sectors and encourage them to participate in the national AMR surveillance network.
Source: Journal of Global Infectious Diseases - Category: Infectious Diseases Authors: Source Type: research
Publication date: Available online 21 November 2019Source: Food Research InternationalAuthor(s): Christina Sakarikou, Dimitra Kostoglou, Manuel Simões, Efstathios GiaourisAbstractSalmonella is one of the most frequent causes of foodborne outbreaks throughout the world. In the last years, the resistance of this and other pathogenic bacteria to antimicrobials has become a prime concern towards their successful control. In addition, the tolerance and virulence of pathogenic bacteria, such as Salmonella, are commonly related to their ability to form biofilms, which are sessile structures encountered on various surfaces ...
Source: Food Research International - Category: Food Science Source Type: research
This study aimed to investigate the prevalence and antimicrobial resistance of Salmonella spp. isolated from large-scale breeder farms in Shandong Province, China. A total of 63 Salmonella isolates (63/409, 15.4%) were identified from 409 samples collected from five large-scale breeder farms in Shandong Province. These Salmonella isolates were assayed for serotype, antimicrobial susceptibility, prevalence of class 1 integrons, quinolone resistance genes, and β-lactamase genes and subtyped by multilocus sequence typing (MLST). Among these isolates, S. Enteritidis (100%) was the predominant serovar, and high antimicrobi...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
The rapidly increasing prevalence and spread of antibiotic-resistant Salmonella worldwide have become a thorny problem that poses a serious threat to human health. It is speculated that antibiotic abuse, frequent traveling, and mass gatherings accelerate this threat. To explore this hypothesis, we investigated 13 Salmonella isolates from Medina, Saudi Arabia and 15 from China as the control group using typical methods of serotype identification, antibiotic resistance tests, pulsed-field gel electrophoresis (PFGE), and multi-locus sequence typing (MLST). Our results indicated that the isolates from China showed greater sero...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
Dhiviya Prabaa Muthuirulandi Sethuvel, Naveen Kumar Devanga Ragupathi, Yamuna Devi Bakthavatchalam, Saranya Vijayakumar, Rosemol Varghese, Chaitra Shankar, Jobin John Jacob, Karthick Vasudevan, Divyaa Elangovan, Veeraraghavan BalajiIndian Journal of Medical Microbiology 2019 37(2):147-162 The prime goal of molecular epidemiology is to identify the origin and evolution of pathogens, which can potentially influence the public health worldwide. Traditional methods provide limited information which is not sufficient for outbreak investigation and studying transmission dynamics. The recent advancement of next-generation sequen...
Source: Indian Journal of Medical Microbiology - Category: Microbiology Authors: Source Type: research
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