Vilaró, A.; Novell, E.; Enrique-Tarancon, V.; Baliellas, J.; Migura-García, L.; Fraile, L. The Susceptibility Trends of Respiratory and Enteric Porcine Pathogens to Last-Resource Antimicrobials. Antibiotics2023, 12, 1575.
Vilaró, A.; Novell, E.; Enrique-Tarancon, V.; Baliellas, J.; Migura-García, L.; Fraile, L. The Susceptibility Trends of Respiratory and Enteric Porcine Pathogens to Last-Resource Antimicrobials. Antibiotics 2023, 12, 1575.
Vilaró, A.; Novell, E.; Enrique-Tarancon, V.; Baliellas, J.; Migura-García, L.; Fraile, L. The Susceptibility Trends of Respiratory and Enteric Porcine Pathogens to Last-Resource Antimicrobials. Antibiotics2023, 12, 1575.
Vilaró, A.; Novell, E.; Enrique-Tarancon, V.; Baliellas, J.; Migura-García, L.; Fraile, L. The Susceptibility Trends of Respiratory and Enteric Porcine Pathogens to Last-Resource Antimicrobials. Antibiotics 2023, 12, 1575.
Abstract
The objective of the study was to analyse the antimicrobial susceptibility trends of Spanish porcine bacteria to quinolones, cephalosporins and polymyxins. Isolates of Actinobacillus pleuropneumoniae, Pasteurella multocida, and Escherichia coli were isolated from sick pigs from 2019 to 2022. Antimicrobial susceptibility test was determined by minimal inhibitory concentration (MIC) following internationally accepted methodology. MIC categorization was based on distributing the range of MIC values in four categories being category one the most susceptible (lowest MIC value) and four the less susceptible one (highest MIC value). Moreover, clinical susceptibility (susceptible/resistant) was also determined according to CLSI and EUCAST clinical breakpoints. A logistic and multinomial logistic regression model was used to analyze the susceptibility data for dichotomized and categorized MIC data, respectively for any pair of antimicrobial/microorganism. In general terms, the antimicrobial susceptibility of pig bacteria to these antimicrobials remained stable or increased in the last four years in Spain. In the case of A. pleuropneumoniae and quinolones, it was observed a significant temporal trend where isolates from 2020 had significantly increased odds of being more susceptible than isolates from 2019. In the case of E. coli and polymyxins, a significant temporal trend was observed where isolates from 2020 and 2021 had significantly increased odds of being more susceptible than isolates from 2019 and 2020, respectively. Finally, a significant odd of being less susceptible was only observed for cephalosporins and E. coli for 2020 versus 2019, stagnating for the rest of study period. These results provide sound data on critical important antimicrobials in swine medicine.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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