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022 _aEISSN 2076-0817
040 _cddc
041 _aEnglish
100 _qShukrani Phillip
245 _aMolecular Characterizations of the Coagulase-Negative Staphylococci Species Causing Urinary Tract Infection in Tanzania
_b A Laboratory-Based Cross-Sectional Study
260 _aMwanza, Tanzania :
_bCatholic University of Health and Allied Sciences [CUHAS-Bugando] :
_c2023
300 _aPages 01-12
300 _aIncludes References
490 _vPathogens 2023, 12, 180.
520 _aAbstract : Background: There is a growing body of evidence on the potential involvement of coagulase-negative Staphylococci (CoNS) in causing urinary tract infections (UTIs). The aim of this study was to delineate virulence potential, antimicrobial resistance genes, and sequence types of CoNS isolated from patients with UTI symptoms and pyuria in Tanzania. Methods: CoNS from patients with UTI symptoms and more than 125 leucocytes/μL were retrieved, subcultured, and whole-genome sequenced. Results: Out of 65 CoNS isolates, 8 species of CoNS were identified; Staphylococcus haemolyticus, n = 27 (41.5%), and Staphylococcus epidermidis, n = 24 (36.9%), were predominant. The majority of S. haemolyticus were sequence type (ST) 30, with 8 new ST138-145 reported, while the majority of S. epidermidis were typed as ST490 with 7 new ST1184-1190 reported. Sixty isolates (92.3%) had either one or multiple antimicrobial resistance genes. The most frequently detected resistance genes were 53 (21%) dfrG, 32 (12.9%) blaZ, and 26 (10.5%) mecA genes conferring resistance to trimethoprim, penicillin, and methicillin, respectively. Out of 65 isolates, 59 (90.8%) had virulence genes associated with UTI, with a predominance of the icaC 47 (46.5%) and icaA 14 (13.9%) genes. Conclusion: S. haemolyticus and S. epidermidis harboring icaC, dfrG, blaZ, and mecA genes were the predominant CoNS causing UTI in Tanzania. Laboratories should carefully interpret the significant bacteriuria due to CoNS in relation to UTI symptoms and pyuria before labeling them as contaminants. Follow-up studies to document the outcome of the treated patients is needed to add more evidence that CoNS are UTI pathogens.
600 _xS. epidermidis
600 _x S. haemolyticus
600 _xicaC virulence genes
600 _xgenes for AMR
700 _qMartha F. Mushi
700 _qArun Gonzales Decano
700 _qJeremiah Seni
700 _qBlandina T. Mmbaga
700 _qHappiness Kumburu
700 _qEveline T. Konje
700 _qJoseph R. Mwanga
700 _qBenson R. Kidenya
700 _qBetrand Msemwa
700 _qStephen Gillespie
700 _qAntonio Maldonado-Barragan
700 _qAlison Sandeman
700 _qWilber Sabiti
700 _qMathew T. G. Holden
700 _qStephen E. Mshana
856 _uhttps://doi.org/10.3390/pathogens12020180
_yhttps://doi.org/10.3390/pathogens12020180
942 _2ddc
_cVM
_n0
999 _c27988
_d27988