Occurrence and antimicrobial resistance of emergent Arcobacter spp. isolated from cattle and sheep in Iran |
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| Institution: | 1. Ottawa Research and Development Centre (ORDC), Agriculture and Agri-Food Canada, Ottawa, ON, Canada;2. London Research and Development Centre (LRDC), Agriculture and Agri-Food Canada, London, ON, Canada;3. Sherbrooke Research and Development Centre (SRDC), Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada;4. INRS-Institute Armand-Frappier Research Centre, Laval, QC, Canada;1. CICS-UBI–Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Avenida Infante D. Henrique, 6200–506 Covilhã, Portugal;2. National Institute of Health Dr. Ricardo Jorge, Department of Infectious Diseases, National Reference Laboratory for Gastrointestinal Infections, Av. Padre Cruz, Lisbon, Portugal |
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| Abstract: | This study is conducted to determine the occurrence and antimicrobial resistance of Arcobacter spp. isolated from clinically healthy food animals. A total of 308 samples from cattle (200) and sheep (108) were collected from Shiraz slaughterhouse, southern Iran to investigate the presence of the important Arcobacter spp. using cultivation and Polymerase Chain Reaction (PCR) methods. Antimicrobial susceptibility of Arcobacter isolates was determined for 18 antibiotics using disk diffusion method. Among 308 samples, 27 (8.7%) and 44 (14.28%) were positive for the presence of Arcobacter species with cultivation and PCR procedures, respectively. The predominant species was A. butzleri in both cattle (58.33%) and sheep (55%). In addition, concurrent incidence of the species was observed in 25% of the positive samples. All Arcobacter isolates were resistant to rifampicin, vancomycin, ceftriaxone, trimethoprim and cephalothin. The isolates showed high susceptibility to tetracycline, oxytetracycline, erythromycin, ciprofloxacin, kanamycin, amikacin, gentamicin and enrofloxacin. No significant difference among cattle and sheep isolates in resistance pattern was observed. The results indicate that cattle and sheep are significant intestinal carriers for Arcobacter spp. Moreover, tetracycline and aminoglycosides showed great effects on Arcobacter species in antibiogram test and can be used for treatment of human Arcobacter infections. |
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| Keywords: | Cattle Sheep Antimicrobial susceptibility |
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