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Akkemik Y, Güner A. Determination of the presence and antimicrobial resistance of Arcobacter species in broiler carcasses at different stages of slaughter line. Food Sci Nutr 2024; 12:3461-3468. [PMID: 38726459 PMCID: PMC11077200 DOI: 10.1002/fsn3.4013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 05/12/2024] Open
Abstract
In this study, to investigate Arcobacter spp. contamination post-scalding and de-feathering, post-evisceration, post-chilling, and packaged products, which are the most essential contamination stages of broiler slaughter, a total of 108 samples were taken from three different broiler slaughterhouses at different times. Isolates obtained by cultural methods in 104 of 108 samples were analyzed by mPCR method to identify pathogen Arcobacter spp. Arcobacter butzleri, Arcobacter cryaerophilus, and mixed contamination of both Arcobacter species were detected in 51 samples. Of the 51 isolates, 27 (52.9%) were A. butzleri, 16 (31.4%) were A. cryaerophilus, and 8 (15.7%) were mixed contamination of A. butzleri and A. cryaerophilus, while Arcobacter skirrowii was not detected. A. butzleri and A. cryaerophilus contamination was 59.2% post-scalding and de-feathering, 43.4% post-evisceration, 44.4% and 48.1% post-chilling and in packaged products, respectively. All A. butzleri strains were found to be 100% resistant to cefoperazone and penicillin and sensitive to tetracycline. A. cryaerophilus strains were 100% resistant to cefoperazone, penicillin, and cloxacillin and susceptible to tetracycline and erythromycin. In the study, it was determined that Arcobacter spp. caused a very intense contamination (85.18%-100%) and also contamination rates of identified pathogen strains (A. butzleri and A. cryaerophilus) were very high (59.2% and 43.4%) in broiler slaughtering stages. Considering that each step in broiler slaughter could contaminate the next stage, developing a safe slaughter and minimizing the risk toward the final product, it was concluded that critical control points could not be well managed in broiler slaughterhouses, and broiler meat may pose a significant risk to public health.
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Affiliation(s)
- Yasin Akkemik
- Department of Food Hygiene and TechnologyKastamonu University Faculty of Veterinary MedicineKastamonuTurkey
| | - Ahmet Güner
- Department of Food Hygiene and TechnologySelcuk University Faculty of Veterinary MedicineKonyaTurkey
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2
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Castello A, Alio V, Cammilleri G, Sciortino S, Macaluso A, Ferrantelli V, Dall’Ara S, Pino F, Servadei I, Oliveri G, Costa A. Microbiological and Toxicological Investigations on Bivalve Molluscs Farmed in Sicily. Foods 2024; 13:552. [PMID: 38397529 PMCID: PMC10887788 DOI: 10.3390/foods13040552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/29/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Bivalves can concentrate biological and chemical pollutants, causing foodborne outbreaks whose occurrence is increasing, due to climatic and anthropic factors that are difficult to reverse, hence the need for improved surveillance. This study aimed to evaluate the hygienic qualities of bivalves sampled along the production and distribution chain in Sicily and collect useful data for consumer safety. Bacteriological and molecular analyses were performed on 254 samples of bivalves for the detection of enteropathogenic Vibrio, Arcobacter spp., Aeromonas spp., Salmonella spp., and beta-glucuronidase-positive Escherichia coli. A total of 96 out of 254 samples, collected in the production areas, were processed for algal biotoxins and heavy metals detection. Bacterial and algal contaminations were also assessed for 21 samples of water from aquaculture implants. Vibrio spp., Arcobacter spp., Aeromonas hydrophila, Salmonella spp., and Escherichia coli were detected in 106/254, 79/254, 12/254, 16/254, and 95/254 molluscs, respectively. A total of 10/96 bivalves tested positive for algal biotoxins, and metals were under the legal limit. V. alginolyticus, A. butzleri, and E. coli were detected in 5, 3, and 3 water samples, respectively. Alexandrium minutum, Dinophysis acuminata, Lingulodinium polyedra, and Pseudonitzschia spp. were detected in water samples collected with the biotoxin-containing molluscs. Traces of yessotoxins were detected in molluscs from water samples containing the corresponding producing algae. Despite the strict regulation by the European Commission over shellfish supply chain monitoring, our analyses highlighted the need for efficiency improvement.
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Affiliation(s)
- Annamaria Castello
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via G. Marinuzzi 3, 90129 Palermo, Italy (A.C.)
| | - Vincenzina Alio
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via G. Marinuzzi 3, 90129 Palermo, Italy (A.C.)
| | - Gaetano Cammilleri
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via G. Marinuzzi 3, 90129 Palermo, Italy (A.C.)
| | - Sonia Sciortino
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via G. Marinuzzi 3, 90129 Palermo, Italy (A.C.)
| | - Andrea Macaluso
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via G. Marinuzzi 3, 90129 Palermo, Italy (A.C.)
| | - Vincenzo Ferrantelli
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via G. Marinuzzi 3, 90129 Palermo, Italy (A.C.)
| | - Sonia Dall’Ara
- Fondazione Centro Ricerche Marine, National Reference Laboratory on Marine Biotoxins, V.le A. Vespucci 2, 47042 Cesenatico, Italy (F.P.); (I.S.)
| | - Fiorella Pino
- Fondazione Centro Ricerche Marine, National Reference Laboratory on Marine Biotoxins, V.le A. Vespucci 2, 47042 Cesenatico, Italy (F.P.); (I.S.)
| | - Irene Servadei
- Fondazione Centro Ricerche Marine, National Reference Laboratory on Marine Biotoxins, V.le A. Vespucci 2, 47042 Cesenatico, Italy (F.P.); (I.S.)
| | - Giuseppa Oliveri
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via G. Marinuzzi 3, 90129 Palermo, Italy (A.C.)
| | - Antonella Costa
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via G. Marinuzzi 3, 90129 Palermo, Italy (A.C.)
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Disli HB, Hizlisoy H, Gungor C, Barel M, Dishan A, Gundog DA, Al S, Onmaz NE, Yildirim Y, Gonulalan Z. Investigation and characterization of Aliarcobacter spp. isolated from cattle slaughterhouse in Türkiye. Int Microbiol 2024:10.1007/s10123-023-00478-3. [PMID: 38206523 DOI: 10.1007/s10123-023-00478-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/31/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024]
Abstract
Aliarcobacter spp. have been isolated from numerous food products at retail and from animal carcasses and feces at slaughter. The objectives of this study were as follows: (i) to isolate Aliarcobacter species from different slaughterhouses' samples and (ii) to detect genetic diversity, antibiotic resistance, biofilm ability, and putative virulence gene profiles of the isolates. A molecular investigation of antibiotic resistance and virulence factors was also conducted using polymerase chain reaction (PCR). Among 150 samples, a total of 22 (14.6%) Aliarcobacter spp. isolates were obtained, with varying levels of antibiotic resistance observed. The genes tetO, tetW, and gyrA were detected in 0%, 31.8%, and 27.2% of the isolates, respectively. All isolates were resistant to ampicillin, rifampin, and erythromycin, while tetracycline was found to be the most effective antibiotic, with 81.8% of the isolates showing susceptibility to it. All isolates (100%) harbored more than one of the nine putative virulence genes tested, with 18.1% of isolates carrying more than three. Regarding biofilm formation, 7 (31.8%) and 4 (18.1%) isolates were found to form strong and moderate biofilms, respectively, while one (4.5%) isolate was classified as a weak biofilm producer. ERIC-PCR band patterns suggested that the isolated Aliarcobacter spp. from slaughterhouses had different sources of contamination. These findings highlight the potential risk posed by pathogenic and multidrug-resistant Aliarcobacter spp. in food and the need for control measures throughout the food chain to prevent the spread of these strains. The results indicate that foods of animal origin and cattle slaughterhouses are significant sources of antimicrobial resistant Aliarcobacter.
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Affiliation(s)
- Huseyin Burak Disli
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey.
| | - Harun Hizlisoy
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Candan Gungor
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Mukaddes Barel
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Adalet Dishan
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Yozgat Bozok University, Yozgat, Turkey
| | - Dursun Alp Gundog
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Serhat Al
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Nurhan Ertas Onmaz
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Yeliz Yildirim
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Zafer Gonulalan
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
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Paintsil EK, Ofori LA, Akenten CW, Zautner AE, Mbwana J, Khan NA, Lusingu JPA, Kaseka J, Minja DTR, Gesase S, Jaeger A, Lamshöft M, May J, Obiri-Danso K, Krumkamp R, Dekker D. Antibiotic-Resistant Arcobacter spp. in commercial and smallholder farm animals in Asante Akim North Municipality, Ghana and Korogwe Town Council, Tanzania: a cross-sectional study. Gut Pathog 2023; 15:63. [PMID: 38042805 PMCID: PMC10693124 DOI: 10.1186/s13099-023-00588-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 11/21/2023] [Indexed: 12/04/2023] Open
Abstract
BACKGROUND Arcobacter species are considered emerging foodborne pathogens that can potentially cause serious infections in animals and humans. This cross-sectional study determined the frequency of potentially pathogenic Arcobacter spp. in both commercial and smallholder farm animals in Ghana and Tanzania. A total of 1585 and 1047 (poultry and livestock) samples were collected in Ghana and Tanzania, respectively. Selective enrichment media, along with oxidase and Gram testing, were employed for isolation of suspected Arcobacter spp. and confirmation was done using MALDI-TOF MS. Antibiotic susceptibility was assessed through disk diffusion method and ECOFFs were generated, for interpretation, based on resulting inhibition zone diameters. RESULTS The overall Arcobacter frequency was higher in Ghana (7.0%, n = 111) than in Tanzania (2.0%, n = 21). The frequency of Arcobacter in commercial farms in Ghana was 10.3% (n/N = 83/805), while in Tanzania, it was 2.8% (n/N = 12/430). Arcobacter was detected in only 3.6% (n/N = 28/780) of the samples from smallholder farms in Ghana and 1.5% (n/N = 9/617) of the samples from Tanzania. For commercial farms, in Ghana, the presence of Arcobacter was more abundant in pigs (45.1%, n/N = 37/82), followed by ducks (38.5%, n/N = 10/26) and quails (35.7%, n/N = 10/28). According to MALDI-TOF-based species identification, Arcobacter butzleri (91.6%, n/N = 121/132), Arcobacter lanthieri (6.1%, n/N = 8/132), and Arcobacter cryaerophilus (2.3%, n/N = 3/132) were the only three Arcobacter species detected at both study sites. Almost all of the Arcobacter from Ghana (98.2%, n/N = 109/111) were isolated during the rainy season. The inhibition zone diameters recorded for penicillin, ampicillin, and chloramphenicol allowed no determination of an epidemiological cut-off value. However, the results indicated a general resistance to these three antimicrobials. Multidrug resistance was noted in 57.1% (n/N = 12/21) of the Arcobacter isolates from Tanzania and 45.0% (n/N = 50/111) of those from Ghana. The type of farm (commercial or smallholder) and source of the sample (poultry or livestock) were found to be associated with multi-drug resistance. CONCLUSIONS The high levels of MDR Arcobacter detected from farms in both countries call for urgent attention and comprehensive strategies to mitigate the spread of antimicrobial resistance in these pathogens.
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Affiliation(s)
- Ellis Kobina Paintsil
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), South-End, Asuogya Road, 039-5028, Kumasi, Ghana.
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, 039-5028, Kumasi, Ghana.
- Department of Implementation Research, One Health Bacteriology Group, Bernhard Nocht Institute for Tropical Medicine (BNITM), Bernhard-Nocht-Str. 74, 20359, Hamburg, Germany.
| | - Linda Aurelia Ofori
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, 039-5028, Kumasi, Ghana
| | - Charity Wiafe Akenten
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), South-End, Asuogya Road, 039-5028, Kumasi, Ghana
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, 039-5028, Kumasi, Ghana
- Department of Implementation Research, One Health Bacteriology Group, Bernhard Nocht Institute for Tropical Medicine (BNITM), Bernhard-Nocht-Str. 74, 20359, Hamburg, Germany
| | - Andreas E Zautner
- Institute of Medical Microbiology and Hospital Hygiene, Medical Faculty, Otto-Von-Guericke University Magdeburg, 39120, Magdeburg, Germany
| | - Joyce Mbwana
- National Institute for Medical Research (NIMR), Tanga Centre, Tanga, Tanzania
| | - Neyaz Ahmed Khan
- Department of Implementation Research, One Health Bacteriology Group, Bernhard Nocht Institute for Tropical Medicine (BNITM), Bernhard-Nocht-Str. 74, 20359, Hamburg, Germany
| | - John P A Lusingu
- National Institute for Medical Research (NIMR), Tanga Centre, Tanga, Tanzania
| | - Joseph Kaseka
- National Institute for Medical Research (NIMR), Tanga Centre, Tanga, Tanzania
| | - Daniel T R Minja
- National Institute for Medical Research (NIMR), Tanga Centre, Tanga, Tanzania
| | - Samwel Gesase
- National Institute for Medical Research (NIMR), Tanga Centre, Tanga, Tanzania
| | - Anna Jaeger
- Bernhard Nocht Institute for Tropical Medicine (BNITM), Bernhard-Nocht-Str. 74, 20359, Hamburg, Germany
| | - Maike Lamshöft
- Bernhard Nocht Institute for Tropical Medicine (BNITM), Bernhard-Nocht-Str. 74, 20359, Hamburg, Germany
- German Centre for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, 20359, Hamburg, Germany
| | - Jürgen May
- Bernhard Nocht Institute for Tropical Medicine (BNITM), Bernhard-Nocht-Str. 74, 20359, Hamburg, Germany
- German Centre for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, 20359, Hamburg, Germany
- Tropical Medicine II, University Medical Center Hamburg-Eppendorf (UKE), 20251, Hamburg, Germany
| | - Kwasi Obiri-Danso
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, 039-5028, Kumasi, Ghana
| | - Ralf Krumkamp
- Bernhard Nocht Institute for Tropical Medicine (BNITM), Bernhard-Nocht-Str. 74, 20359, Hamburg, Germany
- German Centre for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, 20359, Hamburg, Germany
| | - Denise Dekker
- Department of Implementation Research, One Health Bacteriology Group, Bernhard Nocht Institute for Tropical Medicine (BNITM), Bernhard-Nocht-Str. 74, 20359, Hamburg, Germany
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Baztarrika I, Salazar-Sánchez A, Hernaez Crespo S, López Mirones JI, Canut A, Alonso R, Martínez-Ballesteros I, Martinez-Malaxetxebarria I. Virulence genotype and phenotype of two clinical isolates of Arcobacter butzleri obtained from patients with different pathologies. Arch Microbiol 2023; 205:369. [PMID: 37923944 PMCID: PMC10624747 DOI: 10.1007/s00203-023-03709-3] [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: 08/23/2023] [Revised: 09/28/2023] [Accepted: 10/13/2023] [Indexed: 11/06/2023]
Abstract
The surge in human arcobacteriosis has increased interest in determining the mechanisms involved in the pathogenesis of Arcobacter butzleri. Here, genomic analyses and in vitro Caco-2 infection, motility, urease and antimicrobial susceptibility testing (AST) assays were used to characterise the virulence and antimicrobial resistance (AMR) determinants of strains HC-1, isolated from a patient with travellers' diarrhoea, and HC-2, isolated from another with pruritus. AMR determinants conferring resistance to tetracycline (tetO, present in both genomes) and to ampicillin and amoxicillin-clavulanic acid (bla3, present in HC-2) were identified. The same determinants associated with flagellum, chemotaxis, adhesion and invasion were detected in both, but HC-1 lacked eight flagellar genes. The urease cluster was only present in HC-1. Motility and urease tests confirmed the genetic differences between strains, but no genetic marker related to the inability of HC-2 to adhere and invade was identified. This inability could be conditioning the patient's pathology.
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Affiliation(s)
- Itsaso Baztarrika
- MikroIker Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006, Vitoria-d Gasteiz, Spain
| | - Adrián Salazar-Sánchez
- MikroIker Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006, Vitoria-d Gasteiz, Spain
| | - Silvia Hernaez Crespo
- Bioaraba, Microbiology, Infectious Diseases, Antimicrobial Agents and Gene Therapy, 01006, Vitoria-Gasteiz, Spain
| | - José Israel López Mirones
- Bioaraba, Microbiology, Infectious Diseases, Antimicrobial Agents and Gene Therapy, 01006, Vitoria-Gasteiz, Spain
| | - Andrés Canut
- Bioaraba, Microbiology, Infectious Diseases, Antimicrobial Agents and Gene Therapy, 01006, Vitoria-Gasteiz, Spain
| | - Rodrigo Alonso
- MikroIker Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006, Vitoria-d Gasteiz, Spain
- Bioaraba, Microbiology, Infectious Diseases, Antimicrobial Agents and Gene Therapy, 01006, Vitoria-Gasteiz, Spain
| | - Ilargi Martínez-Ballesteros
- MikroIker Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006, Vitoria-d Gasteiz, Spain
- Bioaraba, Microbiology, Infectious Diseases, Antimicrobial Agents and Gene Therapy, 01006, Vitoria-Gasteiz, Spain
| | - Irati Martinez-Malaxetxebarria
- MikroIker Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006, Vitoria-d Gasteiz, Spain.
- Bioaraba, Microbiology, Infectious Diseases, Antimicrobial Agents and Gene Therapy, 01006, Vitoria-Gasteiz, Spain.
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6
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Gabucci C, Baldelli G, Amagliani G, Schiavano GF, Savelli D, Russo I, Di Lullo S, Blasi G, Napoleoni M, Leoni F, Primavilla S, Massacci FR, Garofolo G, Petruzzelli A. Widespread Multidrug Resistance of Arcobacter butzleri Isolated from Clinical and Food Sources in Central Italy. Antibiotics (Basel) 2023; 12:1292. [PMID: 37627712 PMCID: PMC10451661 DOI: 10.3390/antibiotics12081292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 07/28/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
The Arcobacter genus comprises a group of bacteria widely distributed in different habitats that can be spread throughout the food chain. Fluoroquinolones and aminoglycosides represent the most common antimicrobial agents used for the treatment of Arcobacter infections. However, the increasing trend of the antimicrobial resistance of this pathogen leads to treatment failures. Moreover, the test implementation and interpretation are hindered by the lack of reference protocols and standard interpretive criteria. The purpose of our study was to assess the antibiotic resistance pattern of 17 A. butzleri strains isolated in Central Italy from fresh vegetables, sushi, chicken breast, and clinical human samples to provide new and updated information about the antimicrobial resistance epidemiology of this species. Antimicrobial susceptibility testing was carried out by the European Committee on Antimicrobial Susceptibility Testing (EUCAST)'s disc diffusion method. All the strains were multidrug resistant, with 100% resistance to tetracyclines and cefotaxime (third generation cephalosporins). Some differences were noticed among the strains, according to the isolation source (clinical isolates, food of animal origin, or fresh vegetables), with a higher sensitivity to streptomycin detected only in the strains isolated from fresh vegetables. Our data, together with other epidemiological information at the national or European Union (EU) level, may contribute to developing homogeneous breakpoints. However, the high prevalence of resistance to a wide range of antimicrobial classes makes this microorganism a threat to human health and suggests that its monitoring should be considered by authorities designated for food safety.
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Affiliation(s)
- Claudia Gabucci
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy; (C.G.); (D.S.); (S.D.L.); (G.B.); (M.N.); (F.L.); (S.P.); (F.R.M.); (A.P.)
| | - Giulia Baldelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (G.B.); (I.R.)
| | - Giulia Amagliani
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (G.B.); (I.R.)
| | | | - David Savelli
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy; (C.G.); (D.S.); (S.D.L.); (G.B.); (M.N.); (F.L.); (S.P.); (F.R.M.); (A.P.)
| | - Ilaria Russo
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy; (G.B.); (I.R.)
| | - Stefania Di Lullo
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy; (C.G.); (D.S.); (S.D.L.); (G.B.); (M.N.); (F.L.); (S.P.); (F.R.M.); (A.P.)
| | - Giuliana Blasi
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy; (C.G.); (D.S.); (S.D.L.); (G.B.); (M.N.); (F.L.); (S.P.); (F.R.M.); (A.P.)
| | - Maira Napoleoni
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy; (C.G.); (D.S.); (S.D.L.); (G.B.); (M.N.); (F.L.); (S.P.); (F.R.M.); (A.P.)
| | - Francesca Leoni
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy; (C.G.); (D.S.); (S.D.L.); (G.B.); (M.N.); (F.L.); (S.P.); (F.R.M.); (A.P.)
| | - Sara Primavilla
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy; (C.G.); (D.S.); (S.D.L.); (G.B.); (M.N.); (F.L.); (S.P.); (F.R.M.); (A.P.)
| | - Francesca Romana Massacci
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy; (C.G.); (D.S.); (S.D.L.); (G.B.); (M.N.); (F.L.); (S.P.); (F.R.M.); (A.P.)
| | - Giuliano Garofolo
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, 64100 Teramo, Italy;
| | - Annalisa Petruzzelli
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy; (C.G.); (D.S.); (S.D.L.); (G.B.); (M.N.); (F.L.); (S.P.); (F.R.M.); (A.P.)
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7
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Baker M, Zhang X, Maciel-Guerra A, Dong Y, Wang W, Hu Y, Renney D, Hu Y, Liu L, Li H, Tong Z, Zhang M, Geng Y, Zhao L, Hao Z, Senin N, Chen J, Peng Z, Li F, Dottorini T. Machine learning and metagenomics reveal shared antimicrobial resistance profiles across multiple chicken farms and abattoirs in China. NATURE FOOD 2023; 4:707-720. [PMID: 37563495 PMCID: PMC10444626 DOI: 10.1038/s43016-023-00814-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 07/07/2023] [Indexed: 08/12/2023]
Abstract
China is the largest global consumer of antimicrobials and improving surveillance methods could help to reduce antimicrobial resistance (AMR) spread. Here we report the surveillance of ten large-scale chicken farms and four connected abattoirs in three Chinese provinces over 2.5 years. Using a data mining approach based on machine learning, we analysed 461 microbiomes from birds, carcasses and environments, identifying 145 potentially mobile antibiotic resistance genes (ARGs) shared between chickens and environments across all farms. A core set of 233 ARGs and 186 microbial species extracted from the chicken gut microbiome correlated with the AMR profiles of Escherichia coli colonizing the same gut, including Arcobacter, Acinetobacter and Sphingobacterium, clinically relevant for humans, and 38 clinically relevant ARGs. Temperature and humidity in the barns were also correlated with ARG presence. We reveal an intricate network of correlations between environments, microbial communities and AMR, suggesting multiple routes to improving AMR surveillance in livestock production.
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Affiliation(s)
- Michelle Baker
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK
| | - Xibin Zhang
- Shandong New Hope Liuhe Group Co. Ltd and Qingdao Key Laboratory of Animal Feed Safety, Qingdao, People's Republic of China
| | | | - Yinping Dong
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, People's Republic of China
| | - Wei Wang
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, People's Republic of China
| | - Yujie Hu
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, People's Republic of China
| | - David Renney
- Nimrod Veterinary Products Ltd., Moreton-in-Marsh, UK
| | - Yue Hu
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK
| | - Longhai Liu
- Shandong Kaijia Food Co., Weifang, People's Republic of China
| | - Hui Li
- Luoyang Center for Disease Control and Prevention, Luoyang City, People's Republic of China
| | - Zhiqin Tong
- Luoyang Center for Disease Control and Prevention, Luoyang City, People's Republic of China
| | - Meimei Zhang
- Liaoning Provincial Center for Disease Control and Prevention, Shenyang City, People's Republic of China
| | - Yingzhi Geng
- Liaoning Provincial Center for Disease Control and Prevention, Shenyang City, People's Republic of China
| | - Li Zhao
- Agricultural Biopharmaceutical Laboratory, College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao City, People's Republic of China
| | - Zhihui Hao
- Chinese Veterinary Medicine Innovation Center, College of Veterinary Medicine, China Agricultural University, Beijing City, People's Republic of China
| | - Nicola Senin
- Department of Engineering, University of Perugia, Perugia, Italy
| | - Junshi Chen
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, People's Republic of China
| | - Zixin Peng
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, People's Republic of China.
| | - Fengqin Li
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, People's Republic of China.
| | - Tania Dottorini
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, UK.
- Centre for Smart Food Research, Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, People's Republic of China.
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8
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He LX, He LY, Gao FZ, Zhang M, Chen J, Jia WL, Ye P, Jia YW, Hong B, Liu SS, Liu YS, Zhao JL, Ying GG. Mariculture affects antibiotic resistome and microbiome in the coastal environment. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131208. [PMID: 36966625 DOI: 10.1016/j.jhazmat.2023.131208] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/23/2023] [Accepted: 03/12/2023] [Indexed: 05/03/2023]
Abstract
Antibiotics are increasingly used and released into the marine environment due to the rapid development of mariculture, resulting in spread of antibiotic resistance. The pollution, distribution, and characteristics of antibiotics, antibiotic resistance genes (ARGs) and microbiomes have been investigated in this study. Results showed that 20 antibiotics were detected in Chinese coastal environment, with predominance of erythromycin-H2O, enrofloxacin and oxytetracycline. In coastal mariculture sites, antibiotic concentrations were significantly higher than in control sites, and more types of antibiotics were detected in the South than in the North of China. Residues of enrofloxacin, ciprofloxacin and sulfadiazine posed high resistance selection risks. β-Lactam, multi-drug and tetracycline resistance genes were frequently detected with significantly higher abundance in the mariculture sites. Of the 262 detected ARGs, 10, 26, and 19 were ranked as high-risk, current-risk, future-risk, respectively. The main bacterial phyla were Proteobacteria and Bacteroidetes, of which 25 genera were zoonotic pathogens, with Arcobacter and Vibrio in particular ranking in the top10. Opportunistic pathogens were more widely distributed in the northern mariculture sites. Phyla of Proteobacteria and Bacteroidetes were the potential hosts of high-risk ARGs, while the conditional pathogens were associated with future-risk ARGs, indicating a potential threat to human health.
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Affiliation(s)
- Lu-Xi He
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Liang-Ying He
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China.
| | - Fang-Zhou Gao
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Min Zhang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Engineering Technology Research Center for Life and Health of River & Lake, Pearl River Hydraulic Research Institute, Pearl River Water Resources Commission of the Ministry of Water Resources, Guangzhou 510611, China
| | - Jun Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Provincial Engineering Technology Research Center for Life and Health of River & Lake, Pearl River Hydraulic Research Institute, Pearl River Water Resources Commission of the Ministry of Water Resources, Guangzhou 510611, China
| | - Wei-Li Jia
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Pu Ye
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Yu-Wei Jia
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Bai Hong
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Si-Si Liu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - You-Sheng Liu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Jian-Liang Zhao
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Guang-Guo Ying
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China.
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9
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Uljanovas D, Gölz G, Fleischmann S, Kudirkiene E, Kasetiene N, Grineviciene A, Tamuleviciene E, Aksomaitiene J, Alter T, Malakauskas M. Genomic Characterization of Arcobacter butzleri Strains Isolated from Various Sources in Lithuania. Microorganisms 2023; 11:1425. [PMID: 37374927 DOI: 10.3390/microorganisms11061425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/09/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Arcobacter (A.) butzleri, the most widespread species within the genus Arcobacter, is considered as an emerging pathogen causing gastroenteritis in humans. Here, we performed a comparative genome-wide analysis of 40 A. butzleri strains from Lithuania to determine the genetic relationship, pangenome structure, putative virulence, and potential antimicrobial- and heavy-metal-resistance genes. Core genome single nucleotide polymorphism (cgSNP) analysis revealed low within-group variability (≤4 SNPs) between three milk strains (RCM42, RCM65, RCM80) and one human strain (H19). Regardless of the type of input (i.e., cgSNPs, accessory genome, virulome, resistome), these strains showed a recurrent phylogenetic and hierarchical grouping pattern. A. butzleri demonstrated a relatively large and highly variable accessory genome (comprising of 6284 genes with around 50% of them identified as singletons) that only partially correlated to the isolation source. Downstream analysis of the genomes resulted in the detection of 115 putative antimicrobial- and heavy-metal-resistance genes and 136 potential virulence factors that are associated with the induction of infection in host (e.g., cadF, degP, iamA), survival and environmental adaptation (e.g., flagellar genes, CheA-CheY chemotaxis system, urease cluster). This study provides additional knowledge for a better A. butzleri-related risk assessment and highlights the need for further genomic epidemiology studies in Lithuania and other countries.
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Affiliation(s)
- Dainius Uljanovas
- Department of Food Safety and Quality, Faculty of Veterinary Medicine, Veterinary Academy, Lithuanian University of Health Sciences, Tilzes St. 18, LT-47181 Kaunas, Lithuania
| | - Greta Gölz
- Institute of Food Safety and Food Hygiene, Freie Universität Berlin, Königsweg 69, 14163 Berlin, Germany
| | - Susanne Fleischmann
- Institute of Food Safety and Food Hygiene, Freie Universität Berlin, Königsweg 69, 14163 Berlin, Germany
| | - Egle Kudirkiene
- Statens Serum Institut, Artillerivej 5, DK-2300 Copenhagen, Denmark
| | - Neringa Kasetiene
- Department of Food Safety and Quality, Faculty of Veterinary Medicine, Veterinary Academy, Lithuanian University of Health Sciences, Tilzes St. 18, LT-47181 Kaunas, Lithuania
| | - Audrone Grineviciene
- Kaunas Clinical Hospital Microbiology Laboratory, Medical Academy, Lithuanian University of Health Sciences, Josvainiu St. 2, LT-47144 Kaunas, Lithuania
| | - Egle Tamuleviciene
- Department of Pediatrics, Medical Academy, Lithuanian University of Health Sciences, Eiveniu St. 2, LT-50161 Kaunas, Lithuania
| | - Jurgita Aksomaitiene
- Department of Food Safety and Quality, Faculty of Veterinary Medicine, Veterinary Academy, Lithuanian University of Health Sciences, Tilzes St. 18, LT-47181 Kaunas, Lithuania
| | - Thomas Alter
- Institute of Food Safety and Food Hygiene, Freie Universität Berlin, Königsweg 69, 14163 Berlin, Germany
| | - Mindaugas Malakauskas
- Department of Food Safety and Quality, Faculty of Veterinary Medicine, Veterinary Academy, Lithuanian University of Health Sciences, Tilzes St. 18, LT-47181 Kaunas, Lithuania
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10
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Barel M, Yildirim Y. Arcobacter species isolated from various seafood and water sources; virulence genes, antibiotic resistance genes and molecular characterization. World J Microbiol Biotechnol 2023; 39:183. [PMID: 37147408 DOI: 10.1007/s11274-023-03547-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/11/2023] [Indexed: 05/07/2023]
Abstract
Arcobacter spp. has gained clinical significance as an emerging diarrheagenic pathogen associated with water reservoirs in recent years. The complete clinical significance of Arcobacter remains rather speculative due to the virulence and antibiotic susceptibility of individual strains. This study aimed to assess the prevalence of Arcobacter spp. in fish, water, and shellfish. A total of 150 samples were collected from the Adana, Kayseri and Kahramanmaras provinces in Turkey. Arcobacter spp. was isolated from 32 (21%) of the 150 samples. The most prevalent species was A. cryaerophilus, 17 (56%), A. butzleri 13 (37%) and A. lacus 2 (6%). As a result, the ratios of the mviN, irgA, pldA, tlyA and hecA target genes were found as 17 (51%), 1 (3%), 7 (23%), 7 (23%), 1 (3%), respectively. While bla OXA-61, tetO and tetW were positive in all isolates, were found as mcr1/2/6, mcr3/7, and mcr5, genes %37.5, %25, and %34.3, respectively. Although in A. butzleri was found 10 (58%), 1 (3%), 3 (43%), 2 (28%) (mviN, irgA, pldA, and tlyA, respectively) virulence genes 7 (42%), 4 (57%), 5 (72%), 1 (3%) was found (mviN, irgA, tlyA, and hecA, respectively) virulence genes in A. cryoaerophilus. Moreover, was found for the mcr 1/2/6 7 (58%) genes, for the mcr 3/7 genes 3 (38%) in A. butzleri. In A. cryoaerophilus was found for the mcr 1/2/6 genes 5 (42%), for the mcr 3/7 genes 5 (62%), and for the mcr 5 gene 10 (100%). Thus, the current study indicated that the existence of Arcobacter spp. isolated from fish and mussel samples may pose a potential risk to public health.
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Affiliation(s)
- Mukaddes Barel
- Veterinary Faculty, Department of Public Health, Erciyes University, Kayseri, Turkey.
| | - Yeliz Yildirim
- Veterinary Faculty, Department of Public Health, Erciyes University, Kayseri, Turkey
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11
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Gungor C, Hizlisoy H, Ertas Onmaz N, Gundog DA, Barel M, Disli HB, Dishan A, Al S, Yildirim Y, Gonulalan Z. Profile of Aliarcobacter spp. from edible giblets: Genetic diversity, antibiotic resistance, biofilm formation. Int J Food Microbiol 2023; 386:110047. [PMID: 36512969 DOI: 10.1016/j.ijfoodmicro.2022.110047] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/18/2022] [Accepted: 11/29/2022] [Indexed: 12/10/2022]
Abstract
Aliarcobacter spp. are recognized as emerging foodborne pathogens and consumption of foods contaminated with them can be a hazard to human and animal health. This study was conducted to investigate the prevalence of Aliarcobacter spp. in edible internal organs of different animal species from retail markets and giblet sellers. Additionally, this study was focused on the antimicrobial resistance, virulence profiles, biofilm-forming capabilities, and phylogenetic relationships of obtained isolates. A total of 270 samples were analyzed from which, 28 (10.4 %) were isolated as Aliarcobacter spp. by conventional methods. Within the 28 Aliarcobacter spp. isolates, 17 (60.7 %) were identified as A. butzleri, 10 (35.7 %) were A. cryaerophilus and one (3.5 %) was A. skirrowii by PCR method. The disc diffusion method showed that the highest resistance rate of Aliarcobacter spp. was seen against oxacillin (78.5 %), and 20 (71.4 %) out of the 28 isolates exhibited multidrug resistance (MDR). Out of the 28 isolates, mviN, pldA, tlyA, and hecB virulence genes were detected in 85.7 %, 46.4 %, 46.4 %, and 3.5 %, respectively, but irgA, Cj1349, ciaB, cadF, and hecA genes were not detected. According to the microplate test, 27 (96.4 %) isolates had weak biofilm ability while one A. cryaerophilus isolate (3.6 %) exhibited strong biofilm formation. ERIC-PCR band patterns suggested that isolated Aliarcobacter spp. from giblets, have different contamination sources. The presence of pathogenic and multidrug-resistant Aliarcobacter spp. in food poses a potential risk to public health and control measures throughout the food chain are necessary to prevent the spread of these strains.
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Affiliation(s)
- Candan Gungor
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye.
| | - Harun Hizlisoy
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye
| | - Nurhan Ertas Onmaz
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye
| | - Dursun Alp Gundog
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye
| | - Mukaddes Barel
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye
| | - H Burak Disli
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye
| | - Adalet Dishan
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye
| | - Serhat Al
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye
| | - Yeliz Yildirim
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye
| | - Zafer Gonulalan
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Türkiye
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12
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Zautner AE, Riedel T, Bunk B, Spröer C, Boahen KG, Akenten CW, Dreyer A, Färber J, Kaasch AJ, Overmann J, May J, Dekker D. Molecular characterization of Arcobacter butzleri isolates from poultry in rural Ghana. Front Cell Infect Microbiol 2023; 13:1094067. [PMID: 36761899 PMCID: PMC9905251 DOI: 10.3389/fcimb.2023.1094067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/09/2023] [Indexed: 01/27/2023] Open
Abstract
In recent years, Arcobacter butzleri has gained clinical significance as an emerging diarrheagenic pathogen associated with poultry and water reservoirs. The full clinical significance of Arcobacter remains rather speculative due to variable virulence and antibiotic susceptibility of individual strains. The aims of the present study were (i) to identify antibiotic resistance genes (ARGs) in the genome sequences of two multidrug-resistant A. butzleri isolates, (ii) to use multilocus-sequence typing (MLST) to generate a guiding phylogeny of A. butzleri isolates collected in Kumasi, Ghana, (iii) to examine the distribution of ARGs in the test cohort, and (iv) to assess the strain's virulence and possible antibiotic treatment options for arcobacteriosis based on the genome sequences and the ARG distribution. A total of 48 A. butzleri isolates obtained from poultry were included in the analysis. These isolates were genotyped by MLST and the antibiotic susceptibilities of isolates to ampicillin, ciprofloxacin, tetracycline, gentamicin, and erythromycin were tested by disk diffusion. Whole genome sequence data of two multidrug-resistant (MDR) A. butzleri isolates were obtained by a combination of single-molecule real-time (SMRT) and Illumina sequencing technology. A total of 14 ARGs were identified in the two generated genome sequences. For all 48 isolates, the frequency of these 14 ARGs was investigated by PCR or amplicon sequencing. With 44 different sequence types found among 48 isolates, strains were phylogenetically heterogeneous. Four of 48 isolates showed an ARG constellation indicating a multidrug-resistant phenotype. The virulence genes in the two A. butzleri genomes showed that the species might be characterized by a somewhat lower virulence as Campylobacter species. The phenotypic susceptibility data combined with the distribution of the particular ARGs especially oxa-464 and the T81I point mutation of the quinolone resistance determining region (QRDR) in a significant percentage of isolates indicated that macrolides and tetracycline can be recommended for calculated antibiotic treatment of arcobacteriosis in Ghana, but not ampicillin and quinolones.
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Affiliation(s)
- Andreas E. Zautner
- Institut für Medizinische Mikrobiologie und Krankenhaushygiene, Universitätsklinikum Magdeburg, Magdeburg, Germany,*Correspondence: Andreas E. Zautner,
| | - Thomas Riedel
- Abteilung Mikrobielle Ökologie und Diversitätsforschung, Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Braunschweig, Germany,Deutsches Zentrum für Infektionsforschung (DZIF), Hannover–Braunschweig, Germany
| | - Boyke Bunk
- Abteilung Bioinformatik und Datenbanken, Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Braunschweig, Germany
| | - Cathrin Spröer
- Abteilung Bioinformatik und Datenbanken, Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Braunschweig, Germany
| | - Kennedy G. Boahen
- One Health Bacteriology Group, Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Charity Wiafe Akenten
- One Health Bacteriology Group, Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Annika Dreyer
- Institut für Medizinische Mikrobiologie und Virology, Universitätsmedizin Göttingen, Göttingen, Germany
| | - Jacqueline Färber
- Institut für Medizinische Mikrobiologie und Krankenhaushygiene, Universitätsklinikum Magdeburg, Magdeburg, Germany
| | - Achim J. Kaasch
- Institut für Medizinische Mikrobiologie und Krankenhaushygiene, Universitätsklinikum Magdeburg, Magdeburg, Germany
| | - Jörg Overmann
- Abteilung Mikrobielle Ökologie und Diversitätsforschung, Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Braunschweig, Germany,Deutsches Zentrum für Infektionsforschung (DZIF), Hannover–Braunschweig, Germany
| | - Jürgen May
- Abteilung für Infektionsepidemiologie, Bernhard-Nocht-Institut für Tropenmedizin (BNITM), Hamburg, Germany,Deutsches Zentrum für Infektionsforschung (DZIF), Hamburg-Borstel-Lübeck, Germany
| | - Denise Dekker
- Abteilung für Infektionsepidemiologie, Bernhard-Nocht-Institut für Tropenmedizin (BNITM), Hamburg, Germany,Deutsches Zentrum für Infektionsforschung (DZIF), Hamburg-Borstel-Lübeck, Germany
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13
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Milanović V, Maoloni A, Belleggia L, Cardinali F, Garofalo C, Cesaro C, Aquilanti L, Osimani A. Tetracycline Resistance Genes in the Traditional Swedish Sour Herring surströmming as Revealed Using qPCR. Genes (Basel) 2022; 14:genes14010056. [PMID: 36672797 PMCID: PMC9858948 DOI: 10.3390/genes14010056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Antibiotic resistance (AR) represents a global concern for human health. To the best of the authors' knowledge, no study addressing AR in surströmming, a traditional Swedish fermented herring, has been performed to date. The aim of the present research was to study the prevalence of tet(O), tet(S), tet(W), tet(K), and tet(M) genes encoding for resistance to tetracycline using quantitative PCR (qPCR) applied to ready-to-eat surströmming samples collected from three producers located in Sweden. The tet(M) gene was found in all the analyzed samples, and it was also the most abundant among the tested tet genes; moreover, tet(O) was the least frequently detected gene. As a general trend, all the analyzed samples showed a high occurrence of the target genes, with slight variations among the producers. A principal component analysis did not reveal any separation among the samples or producers. All the collected data allowed for a drawing of a first picture of the occurrence of tetracycline resistance genes in ready-to-eat surströmming samples. Since no differences among the samples manufactured by the different producers were observed, it is likely that the detected genes were homogeneously spread among the microbial species shared by the herrings used as raw materials. Moreover, it can be hypothesized that the presence of the detected genes was also the result of a selective pressure of the natural marine environment on the herrings' gut microbiota and, hence, on the pro-technological microorganisms responsible for the fermentation of surströmming. However, the contribution of the manufacturers to the contamination of the processed herrings cannot be excluded.
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Affiliation(s)
| | | | | | | | | | | | - Lucia Aquilanti
- Correspondence: ; Tel.: +39-071-22-04-959; Fax: +39-071-22-04-988
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14
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Çelik C, Pınar O, Sipahi N. The Prevalence of Aliarcobacter Species in the Fecal Microbiota of Farm Animals and Potential Effective Agents for Their Treatment: A Review of the Past Decade. Microorganisms 2022; 10:microorganisms10122430. [PMID: 36557682 PMCID: PMC9787757 DOI: 10.3390/microorganisms10122430] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/29/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
There is an endless demand for livestock-originated food, so it is necessary to elucidate the hazard points for livestock breeding. Pathogens are one of the hazard points that threaten the biosecurity of farm-animal breeding and public health. As a potential foodborne pathogen, Aliarcobacter is a member of the intestinal microbiota of farm animals with and without diarrhea. Aliarcobacter spp. are capable of colonizing livestock intestines and are transmitted through the feces. Hence, they endanger slaughterhouses and milk products with fecal contamination. They also have other, rarer, vertical and horizontal transmission routes, including the offspring that abort in farm animals. Gastrointestinal symptoms and abort cases demonstrate potential financial losses to the industry. Viewed from this perspective, the global circulation of farm-animal products is a significant route for zoonotic agents, including Aliarcobacter. In the last decade, worldwide prevalence of Aliarcobacter in fecal samples has ranged from 0.8% in Italy to 100% in Turkey. Furthermore, antibiotic resistance is recognized as a new type of environmental pollutant and has become a hot topic in animal breeding and the food industry. Increasing antibiotic resistance has become a significant problem impacting productivity. The increase in antimicrobial resistance rates in Aliarcobacter is caused by the misuse of antimicrobial drugs in livestock animals, leading to the acquiring of resistance genes from other bacteria, as well as mutations in current resistance genes. The most resistant strains are A. butzleri, A. cryaerophilus, and A. skirrowii. This review analyzes recent findings from the past decade on the prevalence of Aliarcobacter in the intestinal microbiota and the current effective antibiotics against Aliarcobacter. The paper also highlights that A. cryaerophilus and A. skirrowii are found frequently in diarrheal feces, indicating that Aliarcobacter should be studied further in livestock diarrheal diseases. Moreover, Aliarcobacter-infected farm animals can be treated with only a limited number of antibiotics, such as enrofloxacin, doxycycline, oxytetracycline, and gentamicin.
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Affiliation(s)
- Cansu Çelik
- Food Technology Program, Food Processing Department, Vocational School of Veterinary Medicine, Istanbul University-Cerrahpasa, 34320 Istanbul, Türkiye
- Correspondence:
| | - Orhan Pınar
- Equine and Equine Training Program, Vocational School of Veterinary Medicine, Istanbul University-Cerrahpasa, 34320 Istanbul, Türkiye
| | - Nisa Sipahi
- Traditional and Complementary Medicine Applied and Research Centre, Duzce University, 81620 Duzce, Türkiye
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15
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Muurinen J, Muziasari WI, Hultman J, Pärnänen K, Narita V, Lyra C, Fadlillah LN, Rizki LP, Nurmi W, Tiedje JM, Dwiprahasto I, Hadi P, Virta MPJ. Antibiotic Resistomes and Microbiomes in the Surface Water along the Code River in Indonesia Reflect Drainage Basin Anthropogenic Activities. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:14994-15006. [PMID: 35775832 PMCID: PMC9631996 DOI: 10.1021/acs.est.2c01570] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Water and sanitation are important factors in the emergence of antimicrobial resistance in low- and middle-income countries. Drug residues, metals, and various wastes foster the spread of antibiotic resistance genes (ARGs) with the help of mobile genetic elements (MGEs), and therefore, rivers receiving contaminants and effluents from multiple sources are of special interest. We followed both the microbiome and resistome of the Code River in Indonesia from its pristine origin at the Merapi volcano through rural and then city areas to the coast of the Indian Ocean. We used a SmartChip quantitative PCR with 382 primer pairs for profiling the resistome and MGEs and 16S rRNA gene amplicon sequencing to analyze the bacterial communities. The community structure explained the resistome composition in rural areas, while the city sampling sites had lower bacterial diversity and more ARGs, which correlated with MGEs, suggesting increased mobility potential in response to pressures from human activities. Importantly, the vast majority of ARGs and MGEs were no longer detectable in marine waters at the ocean entrance. Our work provides information on the impact of different influents on river health as well as sheds light on how land use contributes to the river resistome and microbiome.
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Affiliation(s)
- Johanna Muurinen
- Department
of Microbiology, University of Helsinki, Viikinkaari 9, 00014 Helsinki, Finland
| | - Windi I. Muziasari
- Department
of Microbiology, University of Helsinki, Viikinkaari 9, 00014 Helsinki, Finland
- Resistomap
Oy, Viikinkaari 4, 00790 Helsinki, Finland
| | - Jenni Hultman
- Department
of Microbiology, University of Helsinki, Viikinkaari 9, 00014 Helsinki, Finland
| | - Katariina Pärnänen
- Department
of Microbiology, University of Helsinki, Viikinkaari 9, 00014 Helsinki, Finland
| | - Vanny Narita
- PT.
AmonRa, Jalan Panti Asuhan
37, 13330 Jakarta
Timur, Indonesia
| | - Christina Lyra
- Department
of Microbiology, University of Helsinki, Viikinkaari 9, 00014 Helsinki, Finland
| | - Lintang N. Fadlillah
- Center
for Environmental Studies (PSLH), Universitas
Gadjah Mada, Jalan Kuningan, 55281 Yogyakarta, Indonesia
- Faculty
of Geography, Universitas Gadjah Mada, Jalan Kaliurang, 55281 Yogyakarta, Indonesia
| | - Ludhang P. Rizki
- Center
for Environmental Studies (PSLH), Universitas
Gadjah Mada, Jalan Kuningan, 55281 Yogyakarta, Indonesia
- Faculty of
Medicine, Universitas Gadjah Mada, Jalan Farmako, 55281 Yogyakarta, Indonesia
| | - William Nurmi
- Resistomap
Oy, Viikinkaari 4, 00790 Helsinki, Finland
| | - James M. Tiedje
- Center
for Microbial Ecology, Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824, United States
| | - Iwan Dwiprahasto
- Faculty of
Medicine, Universitas Gadjah Mada, Jalan Farmako, 55281 Yogyakarta, Indonesia
| | - Pramono Hadi
- Center
for Environmental Studies (PSLH), Universitas
Gadjah Mada, Jalan Kuningan, 55281 Yogyakarta, Indonesia
- Faculty
of Geography, Universitas Gadjah Mada, Jalan Kaliurang, 55281 Yogyakarta, Indonesia
| | - Marko P. J. Virta
- Department
of Microbiology, University of Helsinki, Viikinkaari 9, 00014 Helsinki, Finland
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Leroy-Freitas D, Machado EC, Torres-Franco AF, Dias MF, Leal CD, Araújo JC. Exploring the microbiome, antibiotic resistance genes, mobile genetic element, and potential resistant pathogens in municipal wastewater treatment plants in Brazil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 842:156773. [PMID: 35724791 DOI: 10.1016/j.scitotenv.2022.156773] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 05/28/2023]
Abstract
Wastewater treatment plants (WWTPs) have been widely investigated in Europe, Asia and North America regarding the occurrence and fate of antibiotic resistance (AR) elements, such as antibiotic resistance genes (ARGs), mobile genetic elements (MGEs) and antibiotic resistant bacteria and pathogens. However, monitoring data about AR elements in municipal WWTPs in Brazil are scarce. This study investigated the abundance of intI1, five ARGs (sul1, tetA, blaTEM, ermB and qnrB) and 16S rRNA in raw and treated wastewater of three WWTPs, using different sewage treatments named CAS (Conventional activated sludge), UASB/BTF (UASB followed by biological trickling filter) and MAS/UV (modified activated sludge with UV disinfection stage). Bacterial diversity and the presence of potentially pathogenic groups were also evaluated, and associations between genetic markers and the bacterial populations were presented. All WWTPs decreased the loads of genetic markers finally discharged to receiving water bodies and showed no evidence of being hotspots for antimicrobial resistance amplification in wastewater, since the abundances of intI1 and ARGs within the bacterial population were not increased in the treated effluents. UASB/BTF showed a similar performance to that of the CAS and MAS/UV, reinforcing the sanitary and environmental advantages of this biological treatment, widely applied for wastewater treatment in warm climate regions. Bacterial diversity and richness increased after treatments, and bacterial communities in wastewater samples differed due to catchment areas and treatment typologies. Potential pathogenic population underwent considerable decrease after the treatments; however, strong significant correlations with intI1 and ARGs revealed potential multidrug-resistant pathogenic bacteria (Aeromonas, Arcobacter, Enterobacter, Escherichia-Shigella, Stenotrophomonas and Streptococcus) in the treated effluents, although in reduced relative abundances. These are contributive results for understanding the fate of ARGs, MGEs and potential pathogenic bacteria after wastewater treatments, which might support actions to mitigate their release into Brazilian aquatic environments in the near future.
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Affiliation(s)
- D Leroy-Freitas
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-010, Brazil
| | - E C Machado
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-010, Brazil
| | - A F Torres-Franco
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-010, Brazil; Institute of Sustainable Processes, Valladolid University, Dr. Mergelina s/n., Valladolid 47011, Spain
| | - M F Dias
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-010, Brazil
| | - C D Leal
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-010, Brazil
| | - J C Araújo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte 31270-010, Brazil.
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17
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Zhou G, Wang M, Wang H, Chen X, Gu Y, Shao Z, Zhang J, Zhang M. Species classification and novel plasmid identifications in Arcobacter cryaerophilus and Arcobacter cryaerophilus-like organisms. Front Microbiol 2022; 13:984450. [PMID: 36212879 PMCID: PMC9535334 DOI: 10.3389/fmicb.2022.984450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 09/01/2022] [Indexed: 11/24/2022] Open
Abstract
The Arcobacter is a globally emerging foodborne and zoonotic pathogen that can cause diarrhea in humans. It is relatively homogenous and clearly distinguishes the group from other Epsilonproteobacteria. Arcobacter cryaerophilus (A. cryaerophilus) is a heterogeneous species and little is known about its genomic characterization in China. This study aims to determine the genetic and plasmid features of A. cryaerophilus based on whole-genome sequence (WGS). Average Nucleotide Identity (ANI) and in silico DNA–DNA hybridization (isDDH) were used for the species classification for 90 initially identified A. cryaerophilus strains. One complete genome and 42 draft genomes were obtained by whole genome sequencing. The genomic characteristics were determined using various bioinformatics software. The genomes of the strains examined were estimated to vary from 1.81 to 2.28 Mb in length, with a G + C content of around 27%. ANI and isDDH results indicated that 90 initially identified A. cryaerophilus strains should be reclassified into four new species (ANI > 96% or isDDH > 70%). Two clades (four subclades) were identified among 90 genomes with the phylogenetic analysis. The phylogenetic tree indicated these 90 genomes exhibited a high intra-species genomic diversity. No clustering was assorted with the host or geographic location among these genomes. Aminoglycoside resistance genes, such as aph(2’’)-Ih, AAC(6’)-Ie-APH(2’’)-Ia, aac(6’)-IIa, ant(6), and streptothricin resistance gene SAT-4 were detected in the chromosomes from a third of the Chinese strains. Virulence-related genes were identified in all the sequenced strains. A novel large multiple drug-resistant plasmid (named pCNAC48 with 161,992 bp in length) was identified in strain ICDCAC48. Two antibiotic-resistance islands were found in the plasmid with lengths of 7,950 and 25,137 bp and G + C content of 38.23 and 32.39%, respectively. The drug resistance genes and some transposable elements were cross-distributed among the islands in the plasmid. Antimicrobial susceptibility tests indicated these resistance genes in the plasmid were functional. Plasmid conjugation and curing experiments proved pCNAC48 was stable in strain ICDCAC48. It was the first identified multiple drug resistance plasmid in A. cryaerophilus-like.
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Casado J, Lanas Á, González A. Two-component regulatory systems in Helicobacter pylori and Campylobacter jejuni: Attractive targets for novel antibacterial drugs. Front Cell Infect Microbiol 2022; 12:977944. [PMID: 36093179 PMCID: PMC9449129 DOI: 10.3389/fcimb.2022.977944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Two-component regulatory systems (TCRS) are ubiquitous signal transduction mechanisms evolved by bacteria for sensing and adapting to the constant changes that occur in their environment. Typically consisting of two types of proteins, a membrane sensor kinase and an effector cytosolic response regulator, the TCRS modulate via transcriptional regulation a plethora of key physiological processes, thereby becoming essential for bacterial viability and/or pathogenicity and making them attractive targets for novel antibacterial drugs. Some members of the phylum Campylobacterota (formerly Epsilonproteobacteria), including Helicobacter pylori and Campylobacter jejuni, have been classified by WHO as “high priority pathogens” for research and development of new antimicrobials due to the rapid emergence and dissemination of resistance mechanisms against first-line antibiotics and the alarming increase of multidrug-resistant strains worldwide. Notably, these clinically relevant pathogens express a variety of TCRS and orphan response regulators, sometimes unique among its phylum, that control transcription, translation, energy metabolism and redox homeostasis, as well as the expression of relevant enzymes and virulence factors. In the present mini-review, we describe the signalling mechanisms and functional diversity of TCRS in H. pylori and C. jejuni, and provide an overview of the most recent findings in the use of these microbial molecules as potential novel therapeutic targets for the development of new antibiotics.
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Affiliation(s)
- Javier Casado
- Group of Translational Research in Digestive Diseases, Institute for Health Research Aragón (IIS Aragón), Zaragoza, Spain
- Department of Biochemistry and Molecular & Cellular Biology, University of Zaragoza, Zaragoza, Spain
| | - Ángel Lanas
- Group of Translational Research in Digestive Diseases, Institute for Health Research Aragón (IIS Aragón), Zaragoza, Spain
- Department of Medicine, Psychiatry and Dermatology, University of Zaragoza, Zaragoza, Spain
- Biomedical Research Networking Center in Hepatic and Digestive Diseases (CIBERehd), Madrid, Spain
- Digestive Diseases Service, University Clinic Hospital Lozano Blesa, Zaragoza, Spain
| | - Andrés González
- Group of Translational Research in Digestive Diseases, Institute for Health Research Aragón (IIS Aragón), Zaragoza, Spain
- Department of Medicine, Psychiatry and Dermatology, University of Zaragoza, Zaragoza, Spain
- Biomedical Research Networking Center in Hepatic and Digestive Diseases (CIBERehd), Madrid, Spain
- *Correspondence: Andrés González,
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Molecular Cut-off Values for Aliarcobacter butzleri Susceptibility Testing. Microbiol Spectr 2022; 10:e0100322. [PMID: 35862990 PMCID: PMC9430808 DOI: 10.1128/spectrum.01003-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Aliarcobacter butzleri is an emerging gastrointestinal pathogen found in many countries worldwide. In France, it has become the third most commonly isolated bacterial species from the stools of patients with intestinal infections. No interpretative criteria for antimicrobial susceptibility testing have been proposed for A. butzleri, and most strains are categorized using the recommendations of the Clinical and Laboratory Standards Institute or the European Committee on Antimicrobial Susceptibility Testing for Campylobacter or Enterobacterales. In the present study, the genomes of 30 resistant A. butzleri isolates were analyzed to propose specific epidemiological cut-off values for ampicillin, ciprofloxacin, erythromycin, and tetracycline. The identification of a β-lactamase and the T85I GyrA mutation associated with ampicillin and ciprofloxacin resistance, respectively, allowed us to adjust the disk diffusion (DD) and MIC cut-off values for these molecules. However, epidemiological cut-off values for erythromycin and tetracycline could not be estimated due to the absence of known resistance mechanisms. The present study paves the way for building a consensus for antimicrobial susceptibility testing for this concerning pathogen. IMPORTANCEAliarcobacter butzleri is an emerging and concerning intestinal pathogen. Very few studies have focused on this particular species, and antimicrobial susceptibility testing (AST) is based on methods that have been mostly developed for Campylobacter spp. In fact, no disk diffusion and E-tests adapted cut-offs for A. butzleri are available which leads to misinterpretations. We have shown here that NGS approach to identify genes and mutations in close relation to phenotypic resistance levels is a robust way to solve that issue and precisely differentiate WT and NWT A. butzleri isolates for frequently used antimicrobials. MIC and DD cut-off values have been significantly adjusted and answer the need for a global consensus regarding AST for A. butzleri.
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Martinez-Malaxetxebarria I, Girbau C, Salazar-Sánchez A, Baztarrika I, Martínez-Ballesteros I, Laorden L, Alonso R, Fernández-Astorga A. Genetic characterization and biofilm formation of potentially pathogenic foodborne Arcobacter isolates. Int J Food Microbiol 2022; 373:109712. [DOI: 10.1016/j.ijfoodmicro.2022.109712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 05/01/2022] [Accepted: 05/05/2022] [Indexed: 11/24/2022]
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Orel N, Fadeev E, Klun K, Ličer M, Tinta T, Turk V. Bacterial Indicators Are Ubiquitous Members of Pelagic Microbiome in Anthropogenically Impacted Coastal Ecosystem. Front Microbiol 2022; 12:765091. [PMID: 35111137 PMCID: PMC8801744 DOI: 10.3389/fmicb.2021.765091] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/25/2021] [Indexed: 01/18/2023] Open
Abstract
Coastal zones are exposed to various anthropogenic impacts, such as different types of wastewater pollution, e.g., treated wastewater discharges, leakage from sewage systems, and agricultural and urban runoff. These various inputs can introduce allochthonous organic matter and microbes, including pathogens, into the coastal marine environment. The presence of fecal bacterial indicators in the coastal environment is usually monitored using traditional culture-based methods that, however, fail to detect their uncultured representatives. We have conducted a year-around in situ survey of the pelagic microbiome of the dynamic coastal ecosystem, subjected to different anthropogenic pressures to depict the seasonal and spatial dynamics of traditional and alternative fecal bacterial indicators. To provide an insight into the environmental conditions under which bacterial indicators thrive, a suite of environmental factors and bacterial community dynamics were analyzed concurrently. Analyses of 16S rRNA amplicon sequences revealed that the coastal microbiome was primarily structured by seasonal changes regardless of the distance from the wastewater pollution sources. On the other hand, fecal bacterial indicators were not affected by seasons and accounted for up to 34% of the sequence proportion for a given sample. Even more so, traditional fecal indicator bacteria (Enterobacteriaceae) and alternative wastewater-associated bacteria (Lachnospiraceae, Ruminococcaceae, Arcobacteraceae, Pseudomonadaceae and Vibrionaceae) were part of the core coastal microbiome, i.e., present at all sampling stations. Microbial source tracking and Lagrangian particle tracking, which we employed to assess the potential pollution source, revealed the importance of riverine water as a vector for transmission of allochthonous microbes into the marine system. Further phylogenetic analysis showed that the Arcobacteraceae in our data set was affiliated with the pathogenic Arcobacter cryaerophilus, suggesting that a potential exposure risk for bacterial pathogens in anthropogenically impacted coastal zones remains. We emphasize that molecular analyses combined with statistical and oceanographic models may provide new insights for environmental health assessment and reveal the potential source and presence of microbial indicators, which are otherwise overlooked by a cultivation approach.
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Affiliation(s)
- Neža Orel
- Marine Biology Station Piran, National Institute of Biology, Piran, Slovenia
- *Correspondence: Neža Orel,
| | - Eduard Fadeev
- Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria
| | - Katja Klun
- Marine Biology Station Piran, National Institute of Biology, Piran, Slovenia
| | - Matjaž Ličer
- Marine Biology Station Piran, National Institute of Biology, Piran, Slovenia
- Office for Meteorology, Hydrology and Oceanography, Slovenian Environment Agency, Ljubljana, Slovenia
| | - Tinkara Tinta
- Marine Biology Station Piran, National Institute of Biology, Piran, Slovenia
- Tinkara Tinta,
| | - Valentina Turk
- Marine Biology Station Piran, National Institute of Biology, Piran, Slovenia
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Prevalence, antimicrobial susceptibility and virulence gene profiles of Arcobacter species isolated from human stool samples, foods of animal origin, ready-to-eat salad mixes and environmental water. Gut Pathog 2021; 13:76. [PMID: 34930425 PMCID: PMC8686351 DOI: 10.1186/s13099-021-00472-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 12/07/2021] [Indexed: 12/11/2022] Open
Abstract
Background Members of the genus Arcobacter are considered as emerging zoonotic food and waterborne pathogens that cause gastroenteritis and bacteremia in humans. However, the potential risk that Arcobacter species pose to public health remains unassessed in various countries, including Baltic states. Therefore, the aim of this study was to determine the prevalence, antimicrobial susceptibility and presence of putative virulence genes of Arcobacter isolates recovered from humans, food products and environmental water in Lithuania. Results A total of 1862 samples were collected and examined from 2018 to 2020 in the city of Kaunas. Overall, 11.2% (n = 208) of the samples were positive for the presence of Arcobacter spp. The highest prevalence was detected in chicken meat (36%), followed by environmental water (28.1%), raw cow milk (25%), ready-to-eat salad mixes (7.1%) and human stool (1.7%). A. butzleri was the most frequently isolated species (n = 192; 92.3%), followed by A. cryaerophilus (n = 16; 7.7%). Arcobacter spp. antimicrobial susceptibility testing revealed unimodally distributed aggregated minimal inhibitory concentrations (MICs) for gentamicin, tetracycline, ciprofloxacin, ampicillin and erythromycin. However, a bimodal distribution for azithromycin was found with 96.2% of determined MICs above the epidemiological cut-off value (ECOFF) defined for Campylobacter jejuni (0.25 µg/ml). Majority of the Arcobacter isolates (n = 187; 89.9%) showed high susceptibility to ciprofloxacin with MICs below or equal to the ECOFF value of 0.5 µg/ml. The putative virulence genes cadF (100%), ciaB (100%), cj1349 (99%), tlyA (99%), mviN (97.9%) and pldA (95.8%) were the predominant genes detected among A. butzleri isolates. In contrast, the mviN and ciaB genes were present in all, whereas cj1349 (12.5%), tlyA (25%) and hecA (12.5%) were only detected in few A. cryaerophilus isolates. Conclusions Our results demonstrate that food products and environmental water in Lithuania are frequently contaminated with Arcobacter spp. that carry multiple putative virulence genes. Furthermore, A. butzleri were isolated from 1.7% of inpatients. Fluoroquinolones and aminoglycosides were found to be more effective against Arcobacter in comparison to other antimicrobial agents. However, further studies are needed to determine the pathogenic mechanisms and factors that facilitate the spread of Arcobacter infections.
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Antibiotic Susceptibility Profile and Tetracycline Resistance Genes Detection in Salmonella spp. Strains Isolated from Animals and Food. Antibiotics (Basel) 2021; 10:antibiotics10070809. [PMID: 34356729 PMCID: PMC8300615 DOI: 10.3390/antibiotics10070809] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/28/2021] [Accepted: 06/30/2021] [Indexed: 11/17/2022] Open
Abstract
Salmonella spp. is among the leading causes of foodborne infections in humans and a large number of animals. Salmonella spp. is a pathogen involved in the dissemination of antimicrobial resistance because it can accumulate antibiotic resistance genes (ARGs). In this study, the antibiotic resistance profile to 15 antibiotics, belonging to six different classes, of 60 strains of Salmonella spp. collected from pets, farm animals, wildlife, and food in Sicily (Italy) was investigated by the Kirby-Bauer method. Given that almost 33.3% of the Salmonella spp. strains were resistant to tetracycline, Real-Time PCR analysis was applied on all the 60 strains to detect the presence of eight selected tet resistance genes. Besides, the presence of the int1 gene, related to the horizontal gene transfer among bacteria, was also investigated in all the strains by Real-Time PCR analysis. Our data showed that 56% of the isolated strains harbored one or more tet resistance genes and that these strains were most frequently isolated from animals living in close contact with humans. Concerning int1, 17 strains (28.3%) harbored this genetic element and eight of these simultaneously contained tet genes. The results of this study highlight the importance of using a molecular approach to detect resistance genetic determinants, whose spread can increase the diffusion of multidrug-resistant strains. Besides, the study of zoonotic bacteria such as Salmonella spp. which significantly contribute to ARGs dissemination should always follow a One Health approach that considers the health of humans, animals, and the environment to be closely related.
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