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Karakaya, Emre; Abay, Seçil; Aydin, Fuat
Microbial pathogenesis, August 2024, Volume: 193Journal Article
The current study was conducted to determine the phylogroups and antibiotic susceptibilities of Escherichia coli isolates recovered from fecal samples of Anatolian Ground Squirrels (Spermophilus xanthoprymnus) and to examine the relationship between them. Eighty-two E. coli isolates obtained from 150 fecal samples were investigated. The quadruplex polymerase chain reaction (PCR), phylogroup C-, and E-specific mPCR were subjected to phylogenetic typing of the isolates. The susceptibilities to fifteen antibiotics of the isolates were detected by the disk diffusion method. In the result of phylogenetic typing, phylogroup B2 was most predominant (58.6 %), followed by B1 (25.6 %), E (8.5 %), C (4.9 %), and D (2.4 %). The phylogroup A, F, and Escherichia clades were not detected. The antibiotic susceptibility test revealed that 59.8 % (49/82) and 19.5 % (16/82) of E. coli isolates were resistant to at least one antibiotic and multidrug-resistant (MDR), respectively. Twenty-six (31.7 %), 19 (23.2 %), 11 (13.4 %), and 10 (12.2 %) of the isolates were found to be resistant to gentamicin, tetracycline, amoxicillin-clavulanic acid, and cefoxitin. Of the 49 E. coli isolates that were found to be resistant to any antibiotic analyzed, 30, 13, 4, and 2 were located in phylogroup B2, B1, E, and D, respectively. MDR isolates were mostly located in both phylogroup B1 (31.3 %) and B2 (31.3 %). In conclusion, data from the current study suggest that the isolates may potentially have pathogenic properties, since the majority (69.5 %) of E. coli isolates from fecal samples of Spermophilus xanthoprymnus were located in the pathogenic phylogroup and resistance to various antibiotics was detected. •The phylo-grouping plays an important role in knowing the characteristic features of E. coli isolates.•Antibiotic resistance rate in E. coli isolates from Anatolian Ground Squirrels was found to be low (between 0% and 31.7%)•The first study conducted regarding the genetic structure of E. coli isolates from Anatolian Ground Squirrels.
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