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Marotta F, Janowicz A, Romantini R, Di Marcantonio L, Di Timoteo F, Romualdi T, Zilli K, Barco L, D’Incau M, Mangone I, Cito F, Di Domenico M, Pomilio F, Ricci L, Garofolo G. Genomic and Antimicrobial Surveillance of Campylobacter Population in Italian Poultry. Foods 2023; 12:2919. [PMID: 37569189 PMCID: PMC10418777 DOI: 10.3390/foods12152919] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Campylobacter is one of the most common foodborne diseases worldwide with increasing rates of antibiotic resistance. Most cases of campylobacteriosis can be traced back to the consumption of poultry meat. Despite many efforts to reduce contamination in farms and in slaughterhouses, the persistence of this pathogen in poultry products remains a problem. This study aimed to evaluate the genetic diversity and antibiotic resistance of 542 C. jejuni and C. coli in Italian poultry, in the framework of two National Monitoring Programs. Genomes were screened for antibiotic resistance, virulence determinants and contextualized within a global collection of C. jejuni. ST2116, ST2863 and ST 832 were the most prevalent and significantly associated with Italian poultry. A worrying increase in resistance to quinolones, fluoroquinolones and tetracycline was observed in C. jejuni, while an increased occurrence of multidrug resistant (MDR) strains and strains resistant to macrolides was detected in C. coli. Low resistance rates were found for aminoglycosides. Molecular resistance determinants were consistent with the phenotypic resistance for tetracycline and quinolones. In silico analysis revealed 119 genes associated with virulence factors, with a notably higher prevalence of some genes in ST2863 genomes. This study highlights the increased resistance to macrolides and the emergence of MDR strains for C. coli, the genetic basis of AMR and the predominance of two genotypes among Campylobacter strains isolated from the Italian poultry farms.
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Affiliation(s)
- Francesca Marotta
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Anna Janowicz
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Romina Romantini
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Lisa Di Marcantonio
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Federica Di Timoteo
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Teresa Romualdi
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Katiuscia Zilli
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Lisa Barco
- Italian National Reference Laboratory for Salmonellosis, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, 35020 Padua, Italy;
| | - Mario D’Incau
- Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia Romagna “Bruno Ubertini”, 25124 Brescia, Italy;
| | - Iolanda Mangone
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Francesca Cito
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Marco Di Domenico
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Francesco Pomilio
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Lucilla Ricci
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
| | - Giuliano Garofolo
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale Teramo, Via Campo Boario 1, 64100 Teramo, Italy; (F.M.); (A.J.); (L.D.M.); (F.D.T.); (T.R.); (K.Z.); (I.M.); (F.C.); (M.D.D.); (F.P.); (L.R.); (G.G.)
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Soro AB, Ekhlas D, Marmion M, Scannell AGM, Whyte P, Bolton DJ, Burgess CM, Tiwari BK. Investigation of differences in susceptibility of Campylobacter jejuni strains to UV light-emitting diode (UV-LED) technology. Sci Rep 2023; 13:9459. [PMID: 37301882 PMCID: PMC10257703 DOI: 10.1038/s41598-023-35315-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/16/2023] [Indexed: 06/12/2023] Open
Abstract
Campylobacter jejuni remains a high priority in public health worldwide. Ultraviolet light emitting-diode technology (UV-LED) is currently being explored to reduce Campylobacter levels in foods. However, challenges such as differences in species and strain susceptibilities, effects of repeated UV-treatments on the bacterial genome and the potential to promote antimicrobial cross-protection or induce biofilm formation have arisen. We investigated the susceptibility of eight C. jejuni clinical and farm isolates to UV-LED exposure. UV light at 280 nm induced different inactivation kinetics among strains, of which three showed reductions greater than 1.62 log CFU/mL, while one strain was particularly resistant to UV light with a maximum reduction of 0.39 log CFU/mL. However, inactivation was reduced by 0.46-1.03 log CFU/mL in these three strains and increased to 1.20 log CFU/mL in the resistant isolate after two repeated-UV cycles. Genomic changes related to UV light exposure were analysed using WGS. C. jejuni strains with altered phenotypic responses following UV exposure were also found to have changes in biofilm formation and susceptibility to ethanol and surface cleaners.
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Affiliation(s)
- Arturo B Soro
- Teagasc Food Research Centre, Ashtown, D15 DY05, Dublin, Ireland
- UCD School of Veterinary Medicine, University College Dublin, Belfield, D04 V1W8, Ireland
- Infectious Diseases in Humans, Service Foodborne Pathogens, Sciensano, J. Wytsmanstraat 14, 1050, Brussels, Belgium
| | - Daniel Ekhlas
- Teagasc Food Research Centre, Ashtown, D15 DY05, Dublin, Ireland
- UCD School of Veterinary Medicine, University College Dublin, Belfield, D04 V1W8, Ireland
| | - Maitiú Marmion
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, D04 V1W8, Ireland
- UCD Centre for Food Safety, University College Dublin, Belfield, D04 V1W8, Ireland
| | - Amalia G M Scannell
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, D04 V1W8, Ireland
- UCD Centre for Food Safety, University College Dublin, Belfield, D04 V1W8, Ireland
- UCD Institute of Food and Health, University College Dublin, Belfield, D04 V1W8, Ireland
| | - Paul Whyte
- UCD School of Veterinary Medicine, University College Dublin, Belfield, D04 V1W8, Ireland
| | - Declan J Bolton
- Teagasc Food Research Centre, Ashtown, D15 DY05, Dublin, Ireland
| | | | - Brijesh K Tiwari
- Teagasc Food Research Centre, Ashtown, D15 DY05, Dublin, Ireland.
- Teagasc Food Research Centre, Ashtown, Dublin, D15 DY05, Ireland.
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Prendergast DM, Lynch H, Whyte P, Golden O, Murphy D, Gutierrez M, Cummins J, Johnston D, Bolton D, Coffey A, Lucey B, O'Connor L, Byrne W. Genomic diversity, virulence and source of Campylobacter jejuni contamination in Irish poultry slaughterhouses by whole genome sequencing. J Appl Microbiol 2022; 133:3150-3160. [PMID: 35993276 PMCID: PMC9804324 DOI: 10.1111/jam.15753] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/12/2022] [Accepted: 07/28/2022] [Indexed: 01/05/2023]
Abstract
AIMS The aim was to exploit whole genome sequencing (WGS) to assess genomic diversity, identify virulence genes and deduce the proportion of Campylobacter colonized broilers that directly contaminate their carcasses. METHODS AND RESULTS Campylobacter jejuni isolates (107) from caeca and carcass neck skin samples (50 pairs from the same batch plus 7 individual caeca) sampled at three poultry slaughterhouses over a one-year period were selected for sequencing (MiSeq; Illumina). FastQ files were submitted to BioNumerics for analysis using the wgMLST scheme for allele calling. Campylobacter cgMLST and hierarchical clustering was performed by applying the single linkage algorithm. Sequence types (STs) were determined in silico from the WGS data and isolates were assigned into clonal complexes (CCs) using the Campylobacter PubMLST.org database. Virulence genes were determined by downloading core sequences from the virulence factor database (VFDB) and the National Center for Biotechnology Information (NCBI). A high degree of diversity was observed with 23 different STs identified. ST257 and CC-21 were the most common STs and CCs, respectively. cgMLST analysis suggested that 56% of carcass contamination was a direct result of contamination from caeca from the same batch. Virulence genes known to play a role in human C. jejuni infection were identified such as the wlaN gene and the genes associated with lipooligosaccharide synthesis, which were identified in 30% of isolates. CONCLUSIONS Caecal colonization was the more plausible occurring source of C. jejuni contamination of broiler carcasses, compared with cross-contamination from another batch or the environment. The high rate of genetic diversity observed amongst caecal isolates is consistent with a wide variety of Campylobacter strains circulating in poultry flocks in Ireland. SIGNIFICANCE AND IMPACT OF STUDY The results will further inform broiler processors and regulators about the influence and importance of on-farm colonization versus slaughterhouse cross-contamination and the relationship between C. jejuni in caeca and carcasses during processing.
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Affiliation(s)
| | - Helen Lynch
- Department of Agriculture, Food and the MarineCelbridgeIreland,School of Veterinary Medicine, Veterinary Science CentreUniversity College DublinDublin 4Ireland
| | - Paul Whyte
- School of Veterinary Medicine, Veterinary Science CentreUniversity College DublinDublin 4Ireland
| | - Olwen Golden
- Department of Agriculture, Food and the MarineCelbridgeIreland
| | - Declan Murphy
- Department of Agriculture, Food and the MarineCelbridgeIreland
| | | | - Juliana Cummins
- Department of Agriculture, Food and the MarineCelbridgeIreland
| | - Dayle Johnston
- Department of Agriculture, Food and the MarineCelbridgeIreland
| | | | - Aidan Coffey
- Department of Biological SciencesMunster Technological UniversityCorkIreland
| | - Brigid Lucey
- Department of Biological SciencesMunster Technological UniversityCorkIreland
| | - Lisa O'Connor
- Food Safety Authority of Ireland, IFSCDublin 1Ireland
| | - William Byrne
- Department of Agriculture, Food and the MarineCelbridgeIreland
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