scholarly journals Whole genome sequences of multi-drug resistant Escherichia coli isolated in a Pastoralist Community of Western Uganda: Phylogenomic changes, virulence and resistant genes

PLoS ONE ◽  
2020 ◽  
Vol 15 (5) ◽  
pp. e0231852 ◽  
Author(s):  
Jacob Stanley Iramiot ◽  
Henry Kajumbula ◽  
Joel Bazira ◽  
Etienne P. de Villiers ◽  
Benon B. Asiimwe
2020 ◽  
Author(s):  
Jacob Stanley Iramiot ◽  
Henry Kajumbula ◽  
Joel Bazira ◽  
Etienne P. de Villiers ◽  
Benon B. Asiimwe

AbstractBackgroundThe crisis of antimicrobial resistance is already here with us, affecting both humans and animals alike and very soon, small cuts and surgeries will become life threatening. This study aimed at determine the whole genome sequences of multi-drug resistant Escherichia coli isolated in a Pastoralist Community of Western Uganda: phylogenomic changes, virulence and resistant genes.MethodsThis was a laboratory based cross sectional study. Bacterial isolates analyzed in this study were 42 multidrug resistant E. coli isolated from stool samples from both humans and cattle in pastoralist communities collected between January 2018-March 2019. Most of the isolates (41/42) were resistant to three or more antibiotics (multi-drug resistant) and 21/42 isolates were ESBL producers; 13/42 from human and 8/42 from cattle. Whole Genome Sequencing (WGS) was carried out at the facilities of Kenya Medical Research Institute-Wellcome trust, Kilifi, to determine the phylogenomic changes, virulence and resistant genes.ResultsThe genomes of the human E. coli generally clustered together and away from those of cattle origin. The E. coli isolates were assigned to eight different phylogroups: A, B1, B2, Cladel, D, E, F and G, with a majority being assigned to phylogroup A; while most of the animal isolates were assigned to phylogroup B1. The carriage of multiple AMR genes was higher from the E. coli population from humans than those from cattle. Among these were Beta-lactamase; blaOXA-1: Class D beta-lactamases; blaTEM-1, blaTEM-235: Beta-lactamase; catA1: chloramphenicol acetyl transferase; cmlA1: chloramphenicol efflux transporter; dfrA1, dfrA12, dfrA14, dfrA15, dfrA17, dfrA5, dfrA7, dfrA8: macrolide phosphotransferase; oqxB11: RND efflux pump conferring resistance to fluoroquinolone; qacL, qacEdelta1: quinolone efflux pump; qnrS1: quinolone resistance gene; sul1, sul2, sul3: sulfonamide resistant; tet(A), tet(B): tetracycline efflux pump.A high variation of virulence genes was registered among the E. coli genomes from humans than those of cattle origin.ConclusionThe E. coli of human and cattle origin are largely independent with different ancestral origins. Limited sharing of strains and resistance genes presents a challenge to the hypothesis that AMR in humans is as a result of antibiotic misuse on the farm.


2020 ◽  
Vol 9 (40) ◽  
Author(s):  
Peechanika Chopjitt ◽  
Thidathip Wongsurawat ◽  
Piroon Jenjaroenpun ◽  
Parichart Boueroy ◽  
Rujirat Hatrongjit ◽  
...  

ABSTRACT Here, we report the complete genome sequences of four clinical isolates of extensively drug-resistant Acinetobacter baumannii (XDRAB), isolated in Thailand. These results revealed multiple antimicrobial-resistant genes, each involving two sequence type 16 (ST16) isolates, ST2, and a novel sequence type isolate, ST1479.


2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Christoph Stork ◽  
Beáta Kovács ◽  
Eva Trost ◽  
Tamás Kovács ◽  
György Schneider ◽  
...  

ABSTRACT Escherichia coli can colonize the urinary bladder without causing a disease response in the host. This asymptomatic bacteriuria (ABU) can protect against recurrent symptomatic urinary tract infection by virulent bacteria. Here, we report the whole-genome sequences of nine E. coli ABU isolates from diabetic patients.


2016 ◽  
Vol 4 (6) ◽  
Author(s):  
Claudia Carolina Carbonari ◽  
Nahuel Fittipaldi ◽  
Sarah Teatero ◽  
Taryn B. T. Athey ◽  
Luis Pianciola ◽  
...  

Shiga toxin-producing Escherichia coli strains are worldwide associated with sporadic human infections and outbreaks. In this work, we report the availability of high-quality draft whole-genome sequences for 19 O157:H7 strains isolated in Argentina.


2018 ◽  
Vol 6 (19) ◽  
Author(s):  
Pooja N. Patel ◽  
Rebecca L. Lindsey ◽  
Lisley Garcia-Toledo ◽  
Lori A. Rowe ◽  
Dhwani Batra ◽  
...  

ABSTRACT Shiga toxin-producing Escherichia coli (STEC) is an enteric foodborne pathogen that can cause mild to severe illness. Here, we report the availability of high-quality whole-genome sequences for 77 STEC strains generated using the PacBio sequencing platform.


2017 ◽  
Vol 61 (12) ◽  
Author(s):  
Lu Liu ◽  
Yu Feng ◽  
Xiaoxia Zhang ◽  
Alan McNally ◽  
Zhiyong Zong

ABSTRACT A colistin- and carbapenem-resistant Escherichia coli clinical isolate was found to carry two plasmid-borne colistin-resistant genes, mcr-1 and the newly identified mcr-3, and a carbapenemase gene, bla NDM-5. mcr-3 is a new variant (mcr-3.5) in the isolate and encodes three amino acid substitutions compared with the original MCR-3. mcr-3 was carried by a TnAs3-like transposon on a self-transmissible IncP plasmid in the isolate, highlighting that mcr-3 may have widely spread.


2019 ◽  
Vol 24 (10) ◽  
Author(s):  
David W Eyre ◽  
Katy Town ◽  
Teresa Street ◽  
Leanne Barker ◽  
Nicholas Sanderson ◽  
...  

We describe detection in the United Kingdom (UK) of the drug-resistant Neisseria gonorrhoeae FC428 clone, with ceftriaxone resistance and intermediate azithromycin resistance. Two female patients developed infection following contact with UK-resident men from the same sexual network linked to travel to Ibiza, Spain. One case failed treatment with ceftriaxone, and azithromycin and gentamicin, before successful treatment with ertapenem. Both isolates had indistinguishable whole-genome sequences. Urgent action is essential to contain this drug-resistant strain.


2020 ◽  
Vol 9 (38) ◽  
Author(s):  
Kayo Okumura ◽  
Masako Kaido ◽  
Eiki Yamasaki ◽  
Yasumasa Akai ◽  
Hisao Kurazono ◽  
...  

ABSTRACT The emergence of drug-resistant uropathogenic Escherichia coli (UPEC) has hampered antibiotic therapy for urinary tract infections. To elucidate the resistance mechanisms of UPEC, we performed whole-genome sequencing of eight UPEC strains with different fluoroquinolone resistance levels. Here, we report our sequencing data, providing a valuable resource for understanding such mechanisms.


2019 ◽  
Vol 7 (11) ◽  
pp. 482 ◽  
Author(s):  
Peng ◽  
Li ◽  
Hu ◽  
Li ◽  
Lv ◽  
...  

The emergence of carbapenem-resistant and colistin-resistant Enterobacteriaceae represents a great risk for public health. In this study, the phenotypical and genetic characteristics of eight carbapenem-resistant and colistin-resistant isolates from pig farms in China were determined by the broth microdilution method and whole genome sequencing. Antimicrobial susceptibility testing showed that the eight carbapenem-resistant and colistin-resistant strains were resistant to three aminoglycosides, twelve β-lactams, one of the phenicols, one of the tetracyclines, and one of the fluoroquinolones tested, simultaneously. The prediction of acquired resistant genes using the whole genome sequences revealed the co-existence of blaNDM-1 and mcr-1 as well as the other genes that were responsible for the multidrug-resistant phenotypes. Bioinformatics analysis also showed that the carbapenem-resistant gene blaNDM-1 was located on a putative IncFII-type plasmid, which also carried the other acquired resistant genes identified, including fosA3, blaTEM-1B and rmtB, while the colistin-resistant gene mcr-1 was carried by a putative IncX4-type plasmid. Finally, we found that these resistant genes/plasmids were conjugative, and they could be co-conjugated, conferring resistance to multiple types of antibiotics, including the carbapenems and colistin, to the recipient Escherichia coli strains.


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