Selma Pintarić, Zrinka Štritof, Vesna Mojčec Perko, Andrea Tumpa, Marija Cvetnić, Lana Hadžić
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Abstract
This study investigated the frequency of third-generation cephalosporin resistance in Klebsiella spp. isolated from animals in Croatia and the presence of blaCTX-M genes. A total of 711 enteric bacteria were isolated from clinical samples, and Klebsiella spp. isolates accounted for 6.9% (n = 49). Thirteen Klebsiella isolates (26.5%) were ESBL producers, nine isolates from the Klebsiella pneumoniae species complex (69.2%), and four (30.8%) Klebsiella oxytoca isolates. All carried the blaCTX-M-15 gene, and antimicrobial susceptibility testing revealed them as multidrug resistant. All were resistant to all tested cephalosporins, fluoroquinolones, aminoglycosides and aztreonam, 92.3% showed resistance to tetracycline, 84.6% to trimethoprim-sulfamethoxazole and 69.2% to nitrofurantoin. No isolate showed resistance to imipenem and meropenem. It can be concluded that ESBL-producing Klebsiella expressing the blaCTX-M gene are not rare among Klebsiella isolates from animals in Croatia.
期刊介绍：
Acta Veterinaria Hungarica publishes original research papers presenting new scientific results of international interest, and to a limited extent also review articles and clinical case reports, on veterinary physiology (physiological chemistry and metabolism), veterinary microbiology (bacteriology, virology, immunology, molecular biology), on the infectious diseases of domestic animals, on veterinary parasitology, pathology, clinical veterinary science and reproduction.
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