1
|
Cavaiuolo M, Lefebvre D, Mutel I, Vingadassalon N, Merda D, Hennekinne JA, Nia Y. Corrigendum to "First report of enterotoxigenic Staphylococcus argenteus as a foodborne pathogen" [Int. J. Food Microbiol. 394, 2 June 2023, 110182]. Int J Food Microbiol 2024; 409:110443. [PMID: 37858384 DOI: 10.1016/j.ijfoodmicro.2023.110443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Affiliation(s)
- Marina Cavaiuolo
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France.
| | - Donatien Lefebvre
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Isabelle Mutel
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Noémie Vingadassalon
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Déborah Merda
- University Paris Est, ANSES, SPAAD unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Jacques-Antoine Hennekinne
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Yacine Nia
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| |
Collapse
|
2
|
Cavaiuolo M, Lefebvre D, Mutel I, Vingadassalon N, Merda D, Hennekinne JA, Nia Y. First report of enterotoxigenic Staphylococcus argenteus as a foodborne pathogen. Int J Food Microbiol 2023; 394:110182. [PMID: 36965358 DOI: 10.1016/j.ijfoodmicro.2023.110182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/07/2023] [Accepted: 03/13/2023] [Indexed: 03/19/2023]
Abstract
Staphylococcal enterotoxins preformed in food are the causative agents of staphylococcal food poisoning outbreaks (SFPO). In this study we characterised in depth two coagulase-positive non-pigmented staphylococci involved in two independent outbreaks that occurred in France. While indistinguishable from Staphylococcus aureus using PCR methods and growth phenotype comparisons, both isolates were identified as Staphylococcus argenteus by whole genome sequencing. The genomes were analysed for the presence of enterotoxin genes, whose expression was determined in laboratory medium and, for the first time, in artificially-contaminated milk samples by using liquid chromatography-mass spectrometry and ELISA methods. The concentration measured for the SEB toxin in milk (0.67 ng/ml) was comparable to concentrations reported for other types of enterotoxins behind SFPO. From a collection of publicly available genomes, we performed an unprecedented systematic investigation of the enterotoxin gene set of S. argenteus, including variants and pseudogenes. The most prevalent genes were sex, followed by sel26, sel27 and sey. The egc cluster was less frequent and most of the time carried a dysfunctional seg gene. Our results shed light on the enterotoxigenic properties of S. argenteus, and emphasize the importance in monitoring of S. argenteus as an emerging foodborne pathogen.
Collapse
Affiliation(s)
- Marina Cavaiuolo
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France.
| | - Donatien Lefebvre
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Isabelle Mutel
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Noémie Vingadassalon
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Déborah Merda
- University Paris Est, ANSES, SPAAD unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Jacques-Antoine Hennekinne
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| | - Yacine Nia
- University Paris Est, ANSES, Laboratory for Food Safety, SBCL Unit, Maisons-Alfort location, F-94701 Maisons-Alfort, France
| |
Collapse
|
3
|
Merda D, Felten A, Vingadassalon N, Denayer S, Titouche Y, Decastelli L, Hickey B, Kourtis C, Daskalov H, Mistou MY, Hennekinne JA. NAuRA: Genomic Tool to Identify Staphylococcal Enterotoxins in Staphylococcus aureus Strains Responsible for FoodBorne Outbreaks. Front Microbiol 2020; 11:1483. [PMID: 32714310 PMCID: PMC7344154 DOI: 10.3389/fmicb.2020.01483] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/08/2020] [Indexed: 11/13/2022] Open
Abstract
Food contamination by staphylococcal enterotoxins (SEs) is responsible for many food poisoning outbreaks (FPOs) each year, and they represent the third leading cause of FPOs in Europe. SEs constitute a protein family with 27 proteins. However, enzyme immunoassays can only detect directly in food the five classical SEs (SEA-SEE). Thus, molecular characterization methods of strains found in food are now used for FPO investigations. Here, we describe the development and implementation of a genomic analysis tool called NAuRA (Nice automatic Research of alleles) that can detect the presence of 27 SEs genes in just one analysis- and create a database of allelic data and protein variants for harmonizing analyses. This tool uses genome assembly data and the 27 protein sequences of SEs. To include the different divergence levels between SE-coding genes, parameters of coverage and identity were generated from 10,000 simulations and a dataset of 244 assembled genomes from strains responsible for outbreaks in Europe as well as the RefSeq reference database. Based on phylogenetic inference performed using maximum-likelihood on the core genomes of the strains in this collection, we demonstrated that strains responsible for FPOs are distributed throughout the phylogenetic tree. Moreover, 71 toxin profiles were obtained using the NAuRA pipeline and these profiles do not follow the evolutionary history of strains. This study presents a pioneering method to investigate strains isolated from food at the genomic level and to analyze the diversity of all 27 SE-coding genes together.
Collapse
Affiliation(s)
- Déborah Merda
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), University of Paris-Est, Maisons-Alfort, France
| | - Arnaud Felten
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), University of Paris-Est, Maisons-Alfort, France
| | - Noémie Vingadassalon
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), University of Paris-Est, Maisons-Alfort, France
| | - Sarah Denayer
- Scientific Service of FoodBorne Pathogens, Sciensano, Brussels, Belgium
| | - Yacine Titouche
- Laboratory of Analytical Biochemistry and Biotechnology, University of Mouloud Mammeri, Tizi Ouzou, Algeria
| | - Lucia Decastelli
- National Reference Laboratory for Coagulase-Positive Including Staphylococcus aureus, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy
| | | | - Christos Kourtis
- State General Laboratory, Food Microbiology Laboratory, Nicosia, Cyprus
| | - Hristo Daskalov
- National Center of Food Safety, NDRVI, BFSA, Sofia, Bulgaria
| | - Michel-Yves Mistou
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), University of Paris-Est, Maisons-Alfort, France
| | - Jacques-Antoine Hennekinne
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), University of Paris-Est, Maisons-Alfort, France
| |
Collapse
|
4
|
Titouche Y, Houali K, Ruiz‐Ripa L, Vingadassalon N, NIA Y, Fatihi A, Cauquil A, Bouchez P, Bouhier L, Torres C, Hennekinne J. Enterotoxin genes and antimicrobial resistance in
Staphylococcus aureus
isolated from food products in Algeria. J Appl Microbiol 2020; 129:1043-1052. [DOI: 10.1111/jam.14665] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/27/2020] [Accepted: 04/09/2020] [Indexed: 01/22/2023]
Affiliation(s)
- Y. Titouche
- Laboratory of Analytical Biochemistry and Biotechnology University of Mouloud Mammeri Tizi Ouzou Algeria
| | - K. Houali
- Laboratory of Analytical Biochemistry and Biotechnology University of Mouloud Mammeri Tizi Ouzou Algeria
| | - L. Ruiz‐Ripa
- Biochemistry and Molecular Biology University of La Rioja Logrono Spain
| | - N. Vingadassalon
- University Paris Est Anses Laboratory for Food Safety Maisons‐Alfort France
| | - Y. NIA
- University Paris Est Anses Laboratory for Food Safety Maisons‐Alfort France
| | - A. Fatihi
- University Paris Est Anses Laboratory for Food Safety Maisons‐Alfort France
| | - A. Cauquil
- University Paris Est Anses Laboratory for Food Safety Maisons‐Alfort France
| | - P. Bouchez
- University Paris Est Anses Laboratory for Food Safety Maisons‐Alfort France
| | - L. Bouhier
- University Paris Est Anses Laboratory for Food Safety Maisons‐Alfort France
| | - C. Torres
- Biochemistry and Molecular Biology University of La Rioja Logrono Spain
| | - J.A. Hennekinne
- University Paris Est Anses Laboratory for Food Safety Maisons‐Alfort France
| |
Collapse
|
5
|
Titouche Y, Hakem A, Houali K, Meheut T, Vingadassalon N, Ruiz-Ripa L, Salmi D, Chergui A, Chenouf N, Hennekinne J, Torres C, Auvray F. Emergence of methicillin-resistant Staphylococcus aureus (MRSA) ST8 in raw milk and traditional dairy products in the Tizi Ouzou area of Algeria. J Dairy Sci 2019; 102:6876-6884. [DOI: 10.3168/jds.2018-16208] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 03/23/2019] [Indexed: 12/22/2022]
|
6
|
Roussel S, Felix B, Vingadassalon N, Grout J, Hennekinne JA, Guillier L, Brisabois A, Auvray F. Staphylococcus aureus strains associated with food poisoning outbreaks in France: comparison of different molecular typing methods, including MLVA. Front Microbiol 2015; 6:882. [PMID: 26441849 PMCID: PMC4566840 DOI: 10.3389/fmicb.2015.00882] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 08/11/2015] [Indexed: 11/15/2022] Open
Abstract
Staphylococcal food poisoning outbreaks (SFPOs) are frequently reported in France. However, most of them remain unconfirmed, highlighting a need for a better characterization of isolated strains. Here we analyzed the genetic diversity of 112 Staphylococcus aureus strains isolated from 76 distinct SFPOs that occurred in France over the last 30 years. We used a recently developed multiple-locus variable-number tandem-repeat analysis (MLVA) protocol and compared this method with pulsed field gel electrophoresis (PFGE), spa-typing and carriage of genes (se genes) coding for 11 staphylococcal enterotoxins (i.e., SEA, SEB, SEC, SED, SEE, SEG, SEH, SEI, SEJ, SEP, SER). The strains known to have an epidemiological association with one another had identical MLVA types, PFGE profiles, spa-types or se gene carriage. MLVA, PFGE and spa-typing divided 103 epidemiologically unrelated strains into 84, 80, and 50 types respectively demonstrating the high genetic diversity of S. aureus strains involved in SFPOs. Each MLVA type shared by more than one strain corresponded to a single spa-type except for one MLVA type represented by four strains that showed two different-but closely related-spa-types. The 87 enterotoxigenic strains were distributed across 68 distinct MLVA types that correlated all with se gene carriage except for four MLVA types. The most frequent se gene detected was sea, followed by seg and sei and the most frequently associated se genes were sea-seh and sea-sed-sej-ser. The discriminatory ability of MLVA was similar to that of PFGE and higher than that of spa-typing. This MLVA protocol was found to be compatible with high throughput analysis, and was also faster and less labor-intensive than PFGE. MLVA holds promise as a suitable method for investigating SFPOs and tracking the source of contamination in food processing facilities in real time.
Collapse
Affiliation(s)
- Sophie Roussel
- Université Paris-Est, ANSES, Food Safety Laboratory, European Union Reference Laboratory for Coagulase Positive Staphylococci, Maisons-AlfortFrance
| | | | | | | | | | | | | | | |
Collapse
|
7
|
Félix B, Niskanen T, Vingadassalon N, Dao TT, Asséré A, Lombard B, Brisabois A, Roussel S. Pulsed-field gel electrophoresis proficiency testing trials: toward European harmonization of the typing of food and clinical strains of Listeria monocytogenes. Foodborne Pathog Dis 2015; 10:873-81. [PMID: 24066940 DOI: 10.1089/fpd.2013.1494] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The European Union Reference Laboratory for Listeria monocytogenes (EURL for Lm) coordinates a European network of 35 National Reference Laboratories (NRLs), most of which perform food, environmental, and veterinary Lm strain surveillance in their respective countries. The EURL activities resulted in the recent creation of a database (EURL Lm DB). Typing and related epidemiological data submitted to the EURL Lm DB will be collected and shared by all the NRLs. For a given NRL, the only criterion required in order to submit pulsed-field gel electrophoresis (PFGE) profiles to the database was the successful participation with at least one EURL PFGE and PFGE profile interpretation Proficiency Testing (PT) trial. In this context, the EURL organized a PT trial in 2012 to evaluate the NRL's ability to perform PFGE and profile interpretation. A total of 18 NRLs took part in this study. Upon request from the Food- and Waterborne Diseases and Zoonoses Programme of the European Centre for Disease Prevention and Control, 10 National Public Health Reference Laboratories (NPHLs) also took part in this PT trial. Of the 28 participating laboratories, 16 obtained results classified as "good" or "satisfactory." These 16 laboratories included 10 NRLs (56%) and 6 NPHLs (60%). Of the 22 NRLs and NHPLs that participated in the part of the PT trial related to PFGE profile interpretation, 11 laboratories obtained good results. These 11 laboratories included eight NRLs, which therefore can now submit profiles to the EURL Lm DB. This PT trial provided a valuable opportunity to facilitate and to stimulate the sharing of reproducible PFGE profiles between human and food reference laboratories.
Collapse
Affiliation(s)
- Benjamin Félix
- 1 Université Paris-Est , Anses, Maisons-Alfort Laboratory for Food Safety, European Union Reference Laboratory for Listeria monocytogenes, Bacterial Characterisation and Epidemiology Unit, Maisons-Alfort cedex, France
| | | | | | | | | | | | | | | |
Collapse
|
8
|
Félix B, Niskanen T, Vingadassalon N, Dao TT, Asséré A, Lombard B, Brisabois A, Roussel S. Pulsed-Field Gel Electrophoresis Proficiency Testing Trials: Toward European Harmonization of the Typing of Food and Clinical Strains of Listeria monocytogenes. Foodborne Pathog Dis 2013:130817120052008. [PMID: 23952473 DOI: 10.1089/fpd.2013-1494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract The European Union Reference Laboratory for Listeria monocytogenes (EURL for Lm) coordinates a European network of 35 National Reference Laboratories (NRLs), most of which perform food, environmental, and veterinary Lm strain surveillance in their respective countries. The EURL activities resulted in the recent creation of a database (EURL Lm DB). Typing and related epidemiological data submitted to the EURL Lm DB will be collected and shared by all the NRLs. For a given NRL, the only criterion required in order to submit pulsed-field gel electrophoresis (PFGE) profiles to the database was the successful participation with at least one EURL PFGE and PFGE profile interpretation Proficiency Testing (PT) trial. In this context, the EURL organized a PT trial in 2012 to evaluate the NRL's ability to perform PFGE and profile interpretation. A total of 18 NRLs took part in this study. Upon request from the Food- and Waterborne Diseases and Zoonoses Programme of the European Centre for Disease Prevention and Control, 10 National Public Health Reference Laboratories (NPHLs) also took part in this PT trial. Of the 28 participating laboratories, 16 obtained results classified as "good" or "satisfactory." These 16 laboratories included 10 NRLs (56%) and 6 NPHLs (60%). Of the 22 NRLs and NHPLs that participated in the part of the PT trial related to PFGE profile interpretation, 11 laboratories obtained good results. These 11 laboratories included eight NRLs, which therefore can now submit profiles to the EURL Lm DB. This PT trial provided a valuable opportunity to facilitate and to stimulate the sharing of reproducible PFGE profiles between human and food reference laboratories.
Collapse
Affiliation(s)
- Benjamin Félix
- 1 Université Paris-Est , Anses, Maisons-Alfort Laboratory for Food Safety, European Union Reference Laboratory for Listeria monocytogenes, Bacterial Characterisation and Epidemiology Unit, Maisons-Alfort cedex, France
| | | | | | | | | | | | | | | |
Collapse
|
9
|
Madic J, Peytavin de Garam C, Vingadassalon N, Oswald E, Fach P, Jamet E, Auvray F. Simplex and multiplex real-time PCR assays for the detection of flagellar (H-antigen) fliC alleles and intimin (eae) variants associated with enterohaemorrhagic Escherichia coli (EHEC) serotypes O26:H11, O103:H2, O111:H8, O145:H28 and O157:H7. J Appl Microbiol 2010; 109:1696-705. [PMID: 20618885 DOI: 10.1111/j.1365-2672.2010.04798.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS To develop real-time PCR assays targeting genes encoding the flagellar antigens (fliC) and intimin subtypes (eae) associated with the five most clinically important serotypes of enterohaemorrhagic Escherichia coli (EHEC), i.e. O26:H11, O103:H2, O111:H8, O145:H28 and O157:H7. METHODS AND RESULTS Primers and probes specific to fliC(H2) , fliC(H7) , fliC(H8) , fliC(H11) , fliC(H28) , eae-β1, eae-γ1, eae-ε and eae-θ were combined in simplex and multiplex 5'-nuclease PCR assays. The specificity of the assays was assessed on 201 bacterial strains and the sensitivity determined on serially diluted EHEC genomes. The developed PCR assays were found to be highly specific and detected as few as five EHEC genome equivalents per reaction. Furthermore, it was possible to detect the five major EHEC serotypes in cheese samples inoculated at concentration levels of ≤5CFU per 25g after overnight enrichment using the PCR assays. CONCLUSIONS The PCR assays developed here were found to be sensitive and specific for the reliable detection of genes encoding the flagellar antigens and intimin variants belonging to the five most clinically relevant EHEC serotypes. SIGNIFICANCE AND IMPACT OF THE STUDY Application of real-time PCR assays should improve the identification of foods contaminated by EHEC and facilitate the molecular typing of these organisms.
Collapse
Affiliation(s)
- J Madic
- Agence Française de Sécurité Sanitaire des Aliments, Laboratoire d'Etudes et de Recherches sur la Qualité des Aliments et sur les Procédés agroalimentaires (AFSSA-LERQAP), Maisons-Alfort, France
| | | | | | | | | | | | | |
Collapse
|