Bacterial isolates and antimicrobial susceptibility in dogs with urinary tract infection in Thailand: a retrospective study between 2013 – 2017
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Abstract
Urinary tract infections (UTIs) are required antimicrobial prescription in small animal practice. The proper antimicrobial drug use is crucial for successfully treating UTIs in dogs. Several studies have reported the use of antimicrobials in dogs with UTIs. However, the report in tropical countries are lacking. The objectives of this study were to identify bacterial pathogens and to investigate antimicrobial susceptibility in dogs with UTIs. Dogs with suspected UTIs admitted at Veterinary Teaching Hospital (VTH), Khon Kaen University (KKU) between 2013-2017 were included in the present study. The urine samples were collected using either cystocentesis or sterile urinary catheterization. All urine samples were later submitted to the Veterinary Clinical Diagnostic Laboratory (VCDL) within 30 min. The samples were performed for bacterial identification and drug susceptibility tests. The most common bacterial isolates were Staphylococcus intermedius (33.58%, n = 46), Proteas mirabilis (27.01%, n = 37) and Escherichia coli (19.71%, n = 27), respectively. Among the gram-positive isolates, Staphylococcus intermedius was susceptibility to amoxycillin-clavulanic acid (86.36%) and tetracycline (89.47%), respectively. Proteus mirabilis was susceptibility to amoxicillin (86.12%) and enrofloxacin (67.64%) and E. coli was susceptibility to amikacin (100%), amoxycillin-clavulanic acid (77.77%). In conclusion, amoxycillin-clavulanic acid was the most antimicrobial susceptible to all bacterial isolates. However, emerging multi-drug resistance is of concern worldwide, antibiotics should be decided depending on culture and susceptibility test.
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