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Spill-Over from Public Health? First Detection of an OXA-48-Producing <i>Escherichia coli</i> in a German Pig Farm
oleh: Alexandra Irrgang, Natalie Pauly, Bernd-Alois Tenhagen, Mirjam Grobbel, Annemarie Kaesbohrer, Jens A. Hammerl
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2020-06-01 |
Deskripsi
Resistance to carbapenems is a severe threat to human health. These last resort antimicrobials are indispensable for the treatment of severe human infections with multidrug-resistant Gram-negative bacteria. In accordance with their increasing medical impact, carbapenemase-producing Enterobacteriaceae (CPE) might be disseminated from colonized humans to non-human reservoirs (i.e., environment, animals, food). In Germany, the occurrence of CPE in livestock and food has been systematically monitored since 2016. In the 2019 monitoring, an OXA-48-producing <i>E. coli</i> (19-AB01443) was recovered from a fecal sample of a fattening pig. Phenotypic resistance was confirmed by broth microdilution and further characterized by PFGE, conjugation, and combined short-/long-read whole genome sequencing. This is the first detection of this resistance determinant in samples from German meat production. Molecular characterization and whole-genome sequencing revealed that the <i>bla</i><sub>OXA-48</sub> gene was located on a common pOXA-48 plasmid-prototype. This plasmid-type seems to be globally distributed among various bacterial species, but it was frequently associated with clinical <i>Klebsiella</i> spp. isolates. Currently, the route of introduction of this plasmid/isolate combination into the German pig production is unknown. We speculate that due to its strong correlation with human isolates a transmission from humans to livestock has occurred.