International Journal For Multidisciplinary Research

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Isolation, Characterization Of Urinary Tract Infectious Bacteria And Their Drug Potential

Author(s) Dr. CH CHIRANJEEVI, Ms. CH MEREENA, Ms. G BHRAMARAMBHA, Ms. P SRUTHI, Ms. R SUPRIYA, Mr. E PRASHANT, Ms. SK KARIMUNNISA, Ms. SK YASMEEN
Country India
Abstract Urinary Tract Infections (UTI) are the most common bacterial infections, affecting millions of people globally, particularly women and individuals with compromised immune systems. The pathogenesis of UTIs is predominantly caused by a range of bacteria that colonise the urinary tract, leading to inflammation, pain and other symptoms. Escherichia coli is the most frequently isolated pathogen, followed by other Gram-negative bacteria, such as Klebsiella spp., Proteus spp., and Pseudomonas aeruginosa. The study aimed to isolate the bacterial pathogens responsible for UTI, characterise their virulence factors, and assess their antimicrobial susceptibility profiles. Escherichia coli is the most frequent infecting organism in acute infection. Therefore, knowledge about the frequency and distribution of urinary tract infections (UTIs) is crucial for improving infection control measures. The prevalence of the antibiotic susceptibility patterns of the Gram-negative bacteria was also assessed. Worldwide data show that there is increasing resistance among urinary tract pathogens to conventional drugs. The obtained data on susceptibility patterns of pathogens responsible for urinary tract infections (UTIs) in Poland to currently used antimicrobial agents. A multicentre study of 141 pathogens from hospital-acquired infections and 460 pathogens from community-acquired infections was carried out between July 1998 and May 1999. The most prevalent aetiological agent was Escherichia coli (73.0%), followed by Proteus spp. (8.9%) and other species of Enterobacteriaceae (9.6%). Few community infections were caused by Gram-positive bacteria (2.2%). Gram-positive cocci were isolated more frequently from a hospital setting (14.1%), and the most common were Enterococcus spp. (8.5%). Pseudomonas aeruginosa was found only among hospital isolates and was responsible for 10.7% of infections. E. coli isolates from both community and hospital infections were highly susceptible to many antimicrobial agents except those isolates producing extended-spectrum β-lactamases (ESBLs). Of all Enterobacteriaceae tested, 38 strains (6.9%) were capable of producing ESBLs. Three urine samples were collected from patients. Bacterial isolation was performed using selective media, followed by identification through biochemical tests and including gram staining and drug potential.
Keywords Urinary Tract Infections, Escherichia coli, Klebsiella spp., Proteus spp., Pseudomonas aeruginosa, Antibiotic susceptibility.
Field Medical / Pharmacy
Published In Volume 7, Issue 5, September-October 2025
Published On 2025-10-24
DOI https://doi.org/10.36948/ijfmr.2025.v07i05.57782
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