[en] Poultry farms are hotspots for the development and spread of antibiotic resistance genes (ARGs), due to high stocking densities and extensive use of antibiotics, posing a threat of spread and contagion to workers and the external environment. Here, we applied shotgun metagenome sequencing to characterize the gut microbiome and resistome of poultry, workers and their households - also including microbiomes from the internal and external farm environment - in three different farms in Italy during a complete rearing cycle. Our results highlighted a relevant overlap among the microbiomes of poultry, workers, and their families (gut and skin), with clinically relevant ARGs and associated mobile elements shared in both poultry and human samples. On a finer scale, the reconstruction of species-level genome bins (SGBs) allowed us to delineate the dynamics of microorganism and ARGs dispersion from farm systems. We found the associations with worker microbiomes representing the main route of ARGs dispersion from poultry to human populations. Collectively, our findings clearly demonstrate the urgent need to implement more effective procedures to counteract ARGs dispersion from poultry food systems and the relevance of metagenomics-based metacommunity approaches to monitor the ARGs dispersion process for the safety of the working environment on farms.
Disciplines :
Microbiology
Author, co-author :
Scicchitano, Daniel; University of Bologna, Italy. Electronic address: daniel.scicchitano2@unibo.it
Babbi, Giulia; University of Bologna, Italy. Electronic address: giulia.babbi3@unibo.it
Palladino, Giorgia; University of Bologna, Italy. Electronic address: giorgia.palladino2@unibo.it
Turroni, Silvia; University of Bologna, Italy. Electronic address: silvia.turroni@unibo.it
Mekonnen, Yitagele Terefe; University of Bologna, Italy. Electronic address: yitagele.mekonnen2@unibo.it
LACZNY, Cedric Christian ; University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > Systems Ecology
WILMES, Paul ; University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > Systems Ecology
Leekitcharoenphon, Pimlapas; Tecnhical University of Denmark, Denmark. Electronic address: pile@food.dtu.dk
This work was carried out in the context of the "Controlling Microbiomes Circulations for Better Food Systems" (CIRCLES) project, which was funded by the European Union's Horizon 2020 research and innovation program under grant agreement no. 818290.
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