Isolation, characterization and genomic analysis of a novel lytic bacteriophage EcoPhCCP1, capable of infecting multiple strains of multidrug-resistant Escherichia coli recovered from urinary tract infections
Abstract
There is an urgent need for alternative solutions to combat multidrug-resistant (MDR) E. coli infections. In recent years, there has been an increase in MDR strains causing urinary tract infections (UTIs), which has resulted in more challenging treatment options, increased healthcare costs and prolonged hospital stays. The utilization of bacteriophages as a prospective modality for the management of bacterial infections has garnered significant attention. The objective of this study was to isolate and describe a phage capable of infecting MDR E. coli strains isolated from the urine of patients affected with UTI. The phage EcoPhCCP1 was isolated using the plaque assay from the influent of a wastewater treatment plant. The phage was characterized by phenotypic and genomic features. Morphological characteristics such as shape and size were determined using electron microscopy, and its host range was determined against multiple MDR strains. The complete genome of the phage was subjected to whole-genome sequencing and then assembled and annotated to search for virulence or antimicrobial resistance gene (ARG). VIRIDIC was employed to compare the closest phage genomes, while VICTOR and taxMyPhage were used to construct its phylogeny. EcoPhCCP1 is a tailed phage capable of infecting and propagating in multiple MDR E. coli strains recovered from UTI. The phage genome is 44,482 bp in length, with a GC content of 50.7 mol%, and encodes 87 ORFs, 33 of which have been previously…
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