Antimicrobial susceptibility among respiratory tract pathogens isolated from diseased cattle and pigs from different parts of Europe
Non-replicate nasopharyngeal/nasal or lung swabs were collected from animals with acute respiratory signs.
The aim of this study was to survey antibiotic susceptibility of bacteria causing cattle and pig respiratory infections in 10 European countries.
Non-replicate nasopharyngeal/nasal or lung swabs were collected from animals with acute respiratory signs during 2015-2016. Pasteurella multocida, Mannheimia haemolytica, Histophilus somni from cattle (n=281), and P. multocida, Actinobacillus pleuropneumoniae, Glaesserella parasuis, Bordetella bronchiseptica and Streptococcus suis from pigs (n=593) were isolated. MICs were assessed following CLSI standards and interpreted using veterinary breakpoints where available. H. somni isolates were fully antibiotic susceptible. Bovine P.multocida and M.haemolytica were susceptible to all antibiotics, except tetracycline (11.6-17.6% resistance). Low macrolide and spectinomycin resistance was observed for P.multocida and M. haemolytica (1.3-8.8%). Similar susceptibility was observed in pigs, where breakpoints are available. Resistance in P. multocida, A.pleuropneumoniae and S.suis to ceftiofur, enrofloxacin, and florfenicol was absent or <5%. Tetracycline resistance varied from 10.6% to 21.3%, but was 82.4% in S.suis. Overall multidrug-resistance was low. Antibiotic resistance in 2015-2016 remained similar as in 2009-2012.
In conclusions, low antibiotic resistance was observed among respiratory tract pathogens, except for tetracycline.
“Antimicrobial susceptibility among respiratory tract pathogens isolated from diseased cattle and pigs from different parts of Europe” Anno de Jong, et al. J Appl Microbiol. 2023 Jun 30;lxad132. doi: 10.1093/jambio/lxad132.
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