Resistance of Uropathogenic Staphylococci to Commonly Used Antimicrobials for Treatment of Urinary Tract Infections
DOI:
https://doi.org/10.31185/wjps.637Keywords:
urinary tract infections, Staphylococci, antibiogram assayAbstract
This study addresses the pressing issue antibiotic resistance in uropathogenic staphylococci secluded
from female patients with acute urinary tract infection (UTIs) in Iraq. Antibiotic resistance, driven by the overuse and
misuse of antimicrobials, presents a major public health challenge worldwide. The research focuses on determining
the resistance patterns of these bacteria to routinely used antibiotics and developing viable therapy choices.
Samples were taken from patients aged 18 to 40 years at Al-Hajj Jalal Hospital in Wasit Province, Iraq, over a six-
month period. Urinalysis, bacterial culturing, biochemical, and molecular identification methods, including 16S rRNA
gene amplification, confirmed the presence of Staphylococcus spp. Antimicrobial susceptibility tests were performed
using Kirby-Bauer's disc diffusion method with various antibiotics.
Results revealed a high prevalence of Gram-positive cocci (81.0%), predominantly Staphylococcus species, among
UTI isolates. Alarmingly, staphylococcal isolates exhibited significant resistance to β-lactam antibiotics such as
penicillin (84.4%) and cefoxitin (61.4%). Resistance to other antibiotics, namely gentamicin, norfloxacin, and
trimethoprim were 37.6%, 27.5% and 34.8%, respectively. However, lower resistance rates were observed for
nitrofurantoin (7.3%) and ciprofloxacin (20.1%), supporting their use as first-line therapies.
The study emphasizes the critical need for antimicrobial stewardship, localized resistance monitoring, and routine
susceptibility testing to optimize UTI treatment strategies. Additionally, it advocates for further research to understand
the genetic mechanisms of resistance and explore alternative therapeutic options. These findings underscore the global
urgency of addressing antibiotic resistance to improve patient outcomes in managing UTIs.
References
[2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] S. Sengupta and M. K. Chattopadhyay, “Antibiotic resistance of bacteria: A global challenge,” Resonance,
vol. 17, no. 2, pp. 177–191, 2012.
H. Goossens, M. Ferech, R. Vanderstichele, and M. Elseviers, “Outpatient antibiotics use in Europe and
association with resistance, a grass-national database study,” Lancet, vol. 385, no. 9459, pp. 579–587, 2005.
Center for Disease Control and Prevention, Antibiotic resistance threats in the United States, 2013. U.S.
Department of Health and Human Services, 2013, pp. 1–112.
J. J. Zorc, D. A. Kiddoo, and K. N. Shaw, “Diagnosis and Management of Pediatric Urinary Tract Infections,”
Clinical Microbiology Reviews, vol. 18, pp. 417–422, 2005.
R. Vasudevan, “Urinary Tract Infection: An Overview of the Infection and the Associated Risk Factors,” J.
Microbiol. Exp., vol. 1, no. 2, pp. 00008, 2014. doi: 10.15406/jmen.2014.01.00008.
T. A. Rowe and M. Juthani-Mehta, “Urinary tract infection in older adults,” Aging Health, vol. 9, no. 5, pp.
–528, Oct. 2013, doi: 10.2217/ahe.13.38. PMID: 24391677; PMCID: PMC3878051.
G. A. Koffuor, A. Boye, P. M. Siakwa, J. N. Boampong, R. K. D. Ephraim, et al., “Asymptomatic urinary tract
infections in pregnant women attending antenatal clinic in Cape Coast, Ghana,” E3 J. Med. Res., vol. 1, no. 6,
pp. 74–83, 2012.
A. S. Kolawole, O. M. Kolawole, Y. T. Kandaki-Olukemi, S. K. Babatunde, K. A. Durowade, and C. F.
Kolawole, “Prevalence of urinary tract infections (UTI) among patients attending Dalhatu Araf Specialist
Hospital, Lafia, Nasarawa State, Nigeria,” Int. J. Med. Med. Sci., vol. 1, pp. 163–167, 2009.
V. Dougnon, P. Assogba, E. Anago, E. Déguénon, C. Dapuliga, and J. Agbankpè, “Enterobacteria responsible
for urinary infections: A review about pathogenicity, virulence factors and epidemiology,” J. Appl. Biol.
Biotechnol., vol. 8, pp. 1–2, 2020. doi: 10.7324/JABB.2020.80118.
A. L. Flores-Mireles, J. N. Walker, M. Caparon, and S. J. Hultgren, “Urinary tract infections: Epidemiology,
mechanisms of infection and treatment options,” Nat. Rev. Microbiol., vol. 13, pp. 269–284, 2015. doi:
1038/nrmicro3432.
M. Gajdács, M. Ábrók, A. Lázár, and K. Burián, “Increasing relevance of Gram-positive cocci in urinary tract
infections: A 10-year analysis of their prevalence and resistance trends,” Sci. Rep., vol. 10, pp. 17658, 2020.
doi: 10.1038/s41598-020-74834-y.
T. Foster, “Staphylococcus,” in S. Baron, Ed., Medical Microbiology, 4th ed., Galveston, TX: University of
Texas Medical Branch at Galveston, 1996. Available: http://www.ncbi.nlm.nih.gov/books/NBK8448/.
Accessed: Feb. 18, 2022.
S. Ehlers and S. A. Merrill, “Staphylococcus saprophyticus,” StatPearls, Treasure Island, FL: StatPearls
Publishing, 2022. Available: http://www.ncbi.nlm.nih.gov/books/NBK482367/. Accessed: Feb. 18, 2022.
L. Issakhanian and P. Behzadi, “Antimicrobial agents and urinary tract infections,” Curr. Pharm. Des., vol.
, pp. 1409–1423, 2019. doi: 10.2174/1381612825999190619130216.
C. A. Arias and B. E. Murray, “The rise of the Enterococcus: Beyond vancomycin resistance,” Nat. Rev.
Microbiol., vol. 10, pp. 266–278, 2012. doi: 10.1038/nrmicro2761.
R. Bhatia and R. L. Ichhpujani, Essentials of Medical Microbiology, 4th ed., Part 2, 2008.
M. Cheesbrough, District Laboratory Practice in Tropical Countries, 2nd ed., Update Part 2. Cambridge, UK:
Cambridge University Press, 2010, pp. 107–115.
E. M. Elzouki, S. M. Eljamay, and S. A. Elzouki, “Isolation and Identification of S. aureus in Urinary Tract
Infection,” Indonesian J. Community Serv., vol. 2, no. 2, pp. 53–59, 2023.
J. G. Cappuccino and N. Sherman, Microbiology: A Laboratory Manual, 10th ed., 2014.
J. H. Jorgensen and M. A. Pfaller, Manual of Clinical Microbiology, 11th ed., Washington, DC: American
Society for Microbiology, 2015.
M. M. Mutasher and M. T. Fleih, “DNA extraction from Staphylococci using boiling by distilled water and
sudden freezing,” Patent. Available: https://en.uobaghdad.edu.iq. (https://en.uobaghdad.edu.iq/) Accessed:
Jun. 2, 2024.
B. R. Shome, K. Natesan, S. D. Mitra, N. Venugopal, M. A. N. I. Bhuvana, F. Ganaie, and H. Rahman,
“Development of simplex-PCR assays for accurate identification of nine staphylococcal species at genus and
species levels,” J. Microbiol. Infect. Dis., vol. 8, no. 3, pp. 120–127, 2018.
A.A. Ghayyib, I. A. Ahmed, and H. K. Ahmed, “Isolation, Molecular Identification, and Antimicrobial
Susceptibility Testing of Staphylococcus aureus Isolates,” HIV Nursing, vol. 22, no. 2, pp. 278–283, 2022.
A. Rafik, D. Asmaa, R. Habiba, R. Amina, N. Kaotar, T. Mohammed, and B. Abouddihaj, “Exploring
Staphylococcus in Urinary Tract Infections: A Systematic Review and Meta-analysis on the Epidemiology,
Antibiotic Resistance and Biofilm Formation,” Diagnostic Microbiology and Infectious Disease, vol. 116470,
[26] [27] [28] [29] [30] [31] [32] B. Rahman, M. R. Islam, R. Sultana, S. T. Alam, T. Mehjabin, N. N. H. Bushra, and M. A. Uddin,
“Determination of the antibiotic susceptibility pattern of Gram-positive bacteria causing urinary tract infection
in Dhaka, Bangladesh,” Biomedical and Biotechnology Research Journal (BBRJ), vol. 7, no. 3, pp. 432–437,
O. Afolabi Obe, W. B. Mutiu, I. O. Odulate, and A. Akingbola, “Gram Positive Cocci Associated Urinary
Tract Infections, their Prevalence and Antibiotic Susceptibility Patterns,” South Asian Journal of Research in
Microbiology, vol. 18, no. 6, pp. 33–41, 2024.
R. Aniba, A. Barguigua, A. Dihmane, G. Momen, K. Nayme, and M. Timinouni, “Prevalence and antibacterial
resistance patterns of uropathogenic staphylococci in Casablanca, Morocco,” The Journal of Infection in
Developing Countries, vol. 17, no. 10, pp. 1436–1445, 2023.
I. Karunarathna, P. Gunasena, S. Gunathilake, and K. De Alvis, “The clinical use of gentamicin: Indications,
mechanism of action, and key considerations,” 2024.
D. Thompson, J. Xu, J. Ischia, and D. Bolton, “Fluoroquinolone resistance in urinary tract infections:
Epidemiology, mechanisms of action and management strategies,” BJUI compass, vol. 5, no. 1, pp. 5–11,
K. Gupta, L. Grigoryan, and B. Trautner, “Urinary Tract Infection,” Annals of Internal Medicine, pp. 1–16,
A. A. van Driel, A. E. Muller, R. A. Wijma, E. E. Stobberingh, A. Verbon, and B. C. P. Koch, “Nitrofurantoin
for the treatment of uncomplicated urinary tract infection in female patients: the impact of dosing regimen,
age, and renal function on drug exposure,” European Journal of Clinical Pharmacology, vol. 79, no. 8, pp.
–1049, 2023.
R. Gleckman, N. Blagg, and D. W. Joubert, “Trimethoprim: mechanisms of action, antimicrobial activity,
bacterial resistance, pharmacokinetics, adverse reactions, and therapeutic indications,” Pharmacotherapy, vol.
, no. 1, pp. 14–20, Jul.–Aug. 1981, doi: 10.1002/j.1875-9114.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Aya Mohammed

This work is licensed under a Creative Commons Attribution 4.0 International License.