Phenotypic and Molecular Patterns of Resistance among Campylobacter coli and Campylobacter jejuni Isolates, from Pig Farms
| Autor: | Evanthia Petridou, Spyridon K. Kritas, Dimitrios Papadopoulos, Georgios Delis, I Frydas, Ioannis A. Giantsis, Georgios C. Papadopoulos, Konstantinos Papageorgiou, Maria Hatzistylianou, Vangelis Economou |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
medicine.drug_class
Tetracycline Veterinary medicine Antibiotics Erythromycin Biology medicine.disease_cause Campylobacter jejuni Article Microbiology Antibiotic resistance SF600-1100 medicine antimicrobial resistance Campylobacter General Veterinary pigs Quinolone biology.organism_classification QL1-991 Campylobacter coli Animal Science and Zoology Zoology medicine.drug |
| Zdroj: | Animals, Vol 11, Iss 2394, p 2394 (2021) Animals Volume 11 Issue 8 Animals : an Open Access Journal from MDPI |
| ISSN: | 2076-2615 |
| Popis: | Simple Summary Campylobacter spp. has been the leading cause of human diarrhea in EU since 2005. Although poultry and poultry meat are considered as the primary source of transmission of campylobacteriosis to humans, pigs can be a significant reservoir of the pathogen, as well. Moreover, the increase of antibiotic resistance in the specific pathogen, especially against fluroquinolones and macrolides is considered a significant threat for public health. The purpose of the current study was to evaluate and molecularly characterize the antimicrobial resistance of Campylobacter infection in pig farms in Greece at both phenotypic and molecular level. Abstract The purpose of this research was to characterize the antibiotic resistance patterns of Campylobacter spp. isolated from commercial farrow to finish farms in Greece, and analyze the relevant molecular resistance mechanisms among the resistant Campylobacter isolates. Susceptibility testing to five different classes of antibiotics was performed in 100 C. coli and 100 C. jejuni, previously isolated and identified. All isolates were found susceptible to meropenem. Very high rates of resistance were recorded for tetracyclines (84.5%), medium rates of resistance were recorded regarding quinolones (23%), and low and very low rates of resistance were identified for macrolides such as erythromycin and aminoglycosides (12% and 4%, respectively). Only 12.5% of the Campylobacter isolates displayed MDR. Regarding the molecular mechanisms of resistance, all ciprofloxacin resistant isolates hosted the mutant type Thr-86-Ile region of the quinolone resistance-determining region (QRDR) of the gyrA gene. In all erythromycin resistant isolates, the transitional mutations A2075G and A2074C in the 23S rRNA gene were only amplified. Molecular screening of tetracycline resistance genes indicated that the vast majority of Campylobacter isolates (92.3%) were positive for the tet(O) gene. In summary, these findings and especially the very high and medium rates of resistance for tetracyclines and fluroquinolones, respectively recommend that a continuous monitoring of Campylobacter isolates susceptibility in combination with the proper use of antimicrobials in livestock production is of great importance for public health. |
| Databáze: | OpenAIRE |
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