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Ekundayo TC, Itiolu IF, Ijabadeniyi OA. Arcobacter species in milk contamination: a prevalence-based systematic review and meta-analysis. J Appl Microbiol 2022; 134:lxac037. [PMID: 36626780 DOI: 10.1093/jambio/lxac037] [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: 07/21/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 01/12/2023]
Abstract
AIMS Milk is consumed raw or minimally processed and plays a role in the dissemination of pathogens of public health concerns. The present investigation is aimed at assessing the occurrence of pathogenic Arcobacter species in 2945 milk samples. METHODS AND RESULTS Arcobacter data systematically retrieved from five repositories until 20 February 2022 according to PRISMA principles were logit transformed and fitted using a generalized linear mixed-effects model. The between-study heterogeneity was estimated as I2-value. Leave-one-out cross-validation and funnel plot with Egger's tests were used to assess the hardiness and bias in the model. The global prevalence of Arcobacter genus in the milk was 12% [95% confidence interval (CI): 7-19%; I2 = 87.3%, 95% CI: 83.0-90.6%] and no publication bias observed (Egger's test: P = 0.112). Arcobacter genus prevalence in milk was 13% (95% CI: 5-30%), 10% (95% CI: 1-46%), and 9% (95% CI: 4-19%) in Europe, South America, and Asia, respectively. Arcobacter butzleri was the most prevalent [8% (95% CI: 4-13%)], followed by A. cryaerophilus [0.6% (95% CI: 0.2-33.2%)] and A. skirrowii [0.19% (95% CI: 0.03-1.2%)]. Also, species-specific prevalence of A. butzleri, A. cryaerophilus, and A. skirrowii varied continentally, but the test for species-specific/continental differences was not significantly different (P > 0.5).
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Affiliation(s)
- Temitope C Ekundayo
- Department of Biotechnology and Food Science, Durban University of Technology, Steve Biko Campus, Health Services, 121 Steve Biko Rd, Musgrave, Berea, Durban 4001, South Africa
| | - Ibilola F Itiolu
- Department of Biotechnology and Food Science, Durban University of Technology, Steve Biko Campus, Health Services, 121 Steve Biko Rd, Musgrave, Berea, Durban 4001, South Africa
| | - Oluwatosin A Ijabadeniyi
- Department of Biotechnology and Food Science, Durban University of Technology, Steve Biko Campus, Health Services, 121 Steve Biko Rd, Musgrave, Berea, Durban 4001, South Africa
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2
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Nguyen PT, JuÁrez O, Restaino L. A New Method for Detection of Arcobacter butzleri, Arcobacter cryaerophilus, and Arcobacter skirrowii Using a Novel Chromogenic Agar. J Food Prot 2021; 84:160-168. [PMID: 33411930 DOI: 10.4315/jfp-20-245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/14/2020] [Indexed: 11/11/2022]
Abstract
ABSTRACT Arcobacter species are gram-negative rods that have been implicated in food- and waterborne illness. Although various cultural isolation methods have been proposed, the current procedures are unable to fully suppress the growth of background microbiota present in food samples, which inhibits Arcobacter isolation. The purpose of this study was to develop a selective enrichment broth and chromogenic plating medium to detect three Arcobacter species that have been recognized as emerging foodborne pathogens: Arcobacter butzleri, Arcobacter cryaerophilus, and Arcobacter skirrowii. The developed Nguyen-Restaino-Juárez (NRJ) Arcobacter detection system consists of a selective enrichment broth (NRJ-B) and a selective-differential plating medium (NRJ-M). The protocol of the detection method was determined by evaluating the growth of A. butzleri, A. cryaerophilus, and A. skirrowii under various temperatures (30, 35, and 42°C) and incubation (aerobic, microaerophilic, and anaerobic) conditions. Additionally, 47 Arcobacter strains and 39 non-Arcobacter strains were tested in inclusivity and exclusivity evaluations of NRJ-B and NRJ-M. Overall, the study determined that the optimal growth conditions of Arcobacter species using the NRJ Arcobacter detection system were aerobic incubation at 30°C. NRJ-B supported good growth of A. butzleri, A. cryaerophilus, and A. skirrowii while effectively suppressing the growth of non-Arcobacter strains after 48 h. Furthermore, NRJ-M yielded 97.8% inclusivity and 100.0% exclusivity using the tested strains and resulted in salmon-pigmented Arcobacter colonies (1.0 to 1.5 mm in diameter) after 72 h. The novel protocol is the first to develop a chromogenic plating medium for the isolation of Arcobacter species. This simple and accurate test method would greatly contribute to understanding the distribution of pathogenic Arcobacter species in food samples. HIGHLIGHTS
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Affiliation(s)
- Paul T Nguyen
- R & F Products, Inc., 2725 Curtiss Street, Downers Grove, Illinois 60188.,(ORCID: https://orcid.org/0000-0003-2187-2476 [P.T.N.])
| | - Oscar JuÁrez
- Department of Biological Sciences, Illinois Institute of Technology, 10 West 35th Street, Chicago, Illinois 60616, USA
| | - Lawrence Restaino
- R & F Products, Inc., 2725 Curtiss Street, Downers Grove, Illinois 60188
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3
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Cruzado-Bravo ML, Barancelli GV, Dini Andreote AP, Saldaña E, Vidal-Veuthey B, Collado L, Contreras-Castillo CJ. Occurrence of Arcobacter spp. in Brazilian Minas frescal cheese and raw cow milk and its association with microbiological and physicochemical parameters. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.106904] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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4
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Marta C, Giovanni N, Angela M, Loredana C, Elisabetta B, Laura D, Anna M, Angela DP, Gianfranco S, Antonio P. Large genetic diversity of Arcobacter butzleri isolated from raw milk in Southern Italy. Food Microbiol 2019; 89:103403. [PMID: 32139002 DOI: 10.1016/j.fm.2019.103403] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 12/10/2019] [Accepted: 12/12/2019] [Indexed: 11/19/2022]
Abstract
Arcobacter butzleri is a zoonotic foodborne pathogen able to cause enteric and extraintestinal diseases. Its occurrence in foodstuff is well recognized worldwide but data on its presence in foods from Southern Italy are scarce. In this study the results on the occurrence and genotyping of Arcobacter spp. in bulk milk samples collected in Southern Italy are reported. Out of 484 samples, 64 (13.2%) resulted positive for the presence of Arcobacter spp. Using Real Time PCR but as few as 31.2% of these samples turned out as positive by using the cultural method, showing an overall prevalence of 4.1%. All isolates were identified as A. cryaerophilus using the biochemical identification whilst the sequencing of the atpA gene revealed that all the isolates were A. butzleri. Among the confirmed isolates, 16 different Sequence Types (ST) were identified using the Multi Locus Sequence Typing (MLST), 14 (87.5%) of which were previously unreported. Our survey reveals the presence of A. butzleri in bulk tank milk from Southern Italy and highlights the discrepancy between the two approaches used both for the detection (i.e., real time PCR vs cultural method) and the identification (i.e., biochemical test vs aptA sequencing) of Arcobacter spp In addition, a large genetic diversity among the isolates was detected and this makes the identification of source of the infections very challenging in outbreaks investigation.
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Affiliation(s)
- Caruso Marta
- Experimental Zooprophylactic Institute of Apulia and Basilicata, Foggia, Via Manfredonia 20, 71122, Foggia, Italy
| | - Normanno Giovanni
- Department of Science of Agriculture, Food and Environment (SAFE), University of Foggia, Via Napoli 25, 71122, Foggia, Italy.
| | - Miccolupo Angela
- Experimental Zooprophylactic Institute of Apulia and Basilicata, Foggia, Via Manfredonia 20, 71122, Foggia, Italy
| | - Capozzi Loredana
- Experimental Zooprophylactic Institute of Apulia and Basilicata, Foggia, Via Manfredonia 20, 71122, Foggia, Italy
| | - Bonerba Elisabetta
- Department of Veterinary Medicine, SP Casamassima, Km 3, 70010, Valenzano, (BA), Italy
| | - Difato Laura
- Experimental Zooprophylactic Institute of Apulia and Basilicata, Foggia, Via Manfredonia 20, 71122, Foggia, Italy
| | - Mottola Anna
- Department of Veterinary Medicine, SP Casamassima, Km 3, 70010, Valenzano, (BA), Italy
| | - Di Pinto Angela
- Department of Veterinary Medicine, SP Casamassima, Km 3, 70010, Valenzano, (BA), Italy
| | - Santagada Gianfranco
- Experimental Zooprophylactic Institute of Apulia and Basilicata, Foggia, Via Manfredonia 20, 71122, Foggia, Italy
| | - Parisi Antonio
- Experimental Zooprophylactic Institute of Apulia and Basilicata, Foggia, Via Manfredonia 20, 71122, Foggia, Italy
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Caruso M, Latorre L, Santagada G, Fraccalvieri R, Difato LM, Miccolupo A, Capozzi L, Bonerba E, Mottola A, Parisi A. Arcobacter spp. in bovine milk: An emerging pathogen with potential zoonotic risk. Ital J Food Saf 2019; 7:7685. [PMID: 30854340 PMCID: PMC6379690 DOI: 10.4081/ijfs.2018.7685] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 10/17/2018] [Indexed: 11/23/2022] Open
Abstract
The aim of the present study was to assess the prevalence and genetic characteristics of Arcobacter spp. in bovine bulk tank milk produced in Apulia Region (Italy). Samples collected from 396 dairy farms, after enrichment in a selective broth, were subjected to an Arcobacter genus - specific Real Time PCR. Positive broths, previously filtered, were seeded on Karmali, MCCD and Columbia Blood Agar plates; presumptive Arcobacter spp. colonies were identified using an amplification and sequencing method and then characterized by Multi-Locus Sequence Typing (MLST). Prevalence of Arcobacter spp. in bovine milk samples was 5% (20/396); A. butzleri was the only isolated species, in agreement with previous studies that reported A. butzleri as the most commonly recovered species in milk and dairy products. MLST analysis of the 20 A. butzleri strains identified 81 alleles and 16 STs. Consistent with previous studies, MLST revealed a high level of heterogeneity between the A. butzleri isolates and confirmed the high discriminatory power of this method and its suitability for epidemiological investigations. This study confirmed the importance of raw milk as a possible source of Arcobacter spp. for humans.
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Affiliation(s)
- Marta Caruso
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia.,Anthrax Reference Institute of Italy, Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia
| | - Laura Latorre
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia
| | | | - Rosa Fraccalvieri
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia
| | - Laura Maria Difato
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia
| | - Angela Miccolupo
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia
| | - Loredana Capozzi
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia
| | | | - Anna Mottola
- Department of Veterinary Medicine, University of Bari, Italy
| | - Antonio Parisi
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia
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Ramees TP, Dhama K, Karthik K, Rathore RS, Kumar A, Saminathan M, Tiwari R, Malik YS, Singh RK. Arcobacter: an emerging food-borne zoonotic pathogen, its public health concerns and advances in diagnosis and control - a comprehensive review. Vet Q 2017; 37:136-161. [PMID: 28438095 DOI: 10.1080/01652176.2017.1323355] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Arcobacter has emerged as an important food-borne zoonotic pathogen, causing sometimes serious infections in humans and animals. Newer species of Arcobacter are being incessantly emerging (presently 25 species have been identified) with novel information on the evolutionary mechanisms and genetic diversity among different Arcobacter species. These have been reported from chickens, domestic animals (cattle, pigs, sheep, horses, dogs), reptiles (lizards, snakes and chelonians), meat (poultry, pork, goat, lamb, beef, rabbit), vegetables and from humans in different countries. Arcobacters are implicated as causative agents of diarrhea, mastitis and abortion in animals, while causing bacteremia, endocarditis, peritonitis, gastroenteritis and diarrhea in humans. Three species including A. butzleri, A. cryaerophilus and A. skirrowii are predominantly associated with clinical conditions. Arcobacters are primarily transmitted through contaminated food and water sources. Identification of Arcobacter by biochemical tests is difficult and isolation remains the gold standard method. Current diagnostic advances have provided various molecular methods for efficient detection and differentiation of the Arcobacters at genus and species level. To overcome the emerging antibiotic resistance problem there is an essential need to explore the potential of novel and alternative therapies. Strengthening of the diagnostic aspects is also suggested as in most cases Arcobacters goes unnoticed and hence the exact epidemiological status remains uncertain. This review updates the current knowledge and many aspects of this important food-borne pathogen, namely etiology, evolution and emergence, genetic diversity, epidemiology, the disease in animals and humans, public health concerns, and advances in its diagnosis, prevention and control.
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Affiliation(s)
- Thadiyam Puram Ramees
- a Division of Veterinary Public Health , ICAR-Indian Veterinary Research Institute (IVRI) , Bareilly , India
| | - Kuldeep Dhama
- b Division of Pathology , ICAR-Indian Veterinary Research Institute (IVRI) , Bareilly , India
| | - Kumaragurubaran Karthik
- c Central University Laboratory , Tamil Nadu Veterinary and Animal Sciences University , Chennai , India
| | - Ramswaroop Singh Rathore
- a Division of Veterinary Public Health , ICAR-Indian Veterinary Research Institute (IVRI) , Bareilly , India
| | - Ashok Kumar
- a Division of Veterinary Public Health , ICAR-Indian Veterinary Research Institute (IVRI) , Bareilly , India
| | - Mani Saminathan
- b Division of Pathology , ICAR-Indian Veterinary Research Institute (IVRI) , Bareilly , India
| | - Ruchi Tiwari
- d Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences , UP Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwavidyalay Evum Go-Anusandhan Sansthan (DUVASU) , Mathura , India
| | - Yashpal Singh Malik
- e Division of Biological Standardization , ICAR-Indian Veterinary Research Institute (IVRI) , Bareilly , India
| | - Raj Kumar Singh
- f ICAR-Indian Veterinary Research Institute (IVRI) , Bareilly , India
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7
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Ferreira S, Oleastro M, Domingues FC. Occurrence, genetic diversity and antibiotic resistance of Arcobacter sp. in a dairy plant. J Appl Microbiol 2017; 123:1019-1026. [PMID: 28712149 DOI: 10.1111/jam.13538] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 07/05/2017] [Accepted: 07/06/2017] [Indexed: 11/28/2022]
Abstract
AIMS The aim of this study was to evaluate the occurrence, diversity and resistance to antibiotics of Arcobacter sp. in a dairy plant samples. METHODS AND RESULTS A total of 75 samples from dairy plant surfaces and materials and several food products collected in different steps of the cheese production process were analysed by culture, under aerobic and microaerobic atmospheric conditions, and by enrichment molecular detection. Isolates were identified and genotyped by ERIC-PCR, and their susceptibility to nine antibiotics was evaluated by agar dilution. Global prevalence of Arcobacter sp. was 42·7%, where 20 of the 42 food samples analysed were positive for A. butzleri by both culture and molecular detection, one for A. marinus by culture and one for A. cryaerophilus by molecular detection only; 10 of the 30 analysed materials and plant surfaces were positive for A. butzleri. All A. butzleri isolates were resistant to nalidixic acid and showed high resistance rates to ampicillin (56·2%) and cefotaxime (97·9%), being all strains susceptible to gentamicin and erythromycin. CONCLUSIONS Contamination of dairy plant environment with A. butzleri and its progression along cheese production process were observed, however, the cheese ripening process may have a relevant role in the reduction of the contamination. SIGNIFICANCE AND IMPACT OF THE STUDY This study showed the presence of Arcobacter sp. in a dairy plant, displaying its high prevalence and genetic diversity and highlighting its high resistance rates. The data obtained could contribute to further acknowledge the Arcobacter food contamination as a potential health hazard.
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Affiliation(s)
- S Ferreira
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - M Oleastro
- Department of Infectious Diseases, National Institute of Health Dr Ricardo Jorge, National Reference Laboratory for Gastrointestinal Infections, Lisbon, Portugal
| | - F C Domingues
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
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8
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Arcobacter butzleri, Arcobacter cryaerophilus, and Arcobacter skirrowii Circulation in a Dairy Farm and Sources of Milk Contamination. Appl Environ Microbiol 2015; 81:5055-63. [PMID: 26002896 DOI: 10.1128/aem.01035-15] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 05/11/2015] [Indexed: 11/20/2022] Open
Abstract
Even though dairy cows are known carriers of Arcobacter species and raw or minimally processed foods are recognized as the main sources of human Arcobacter infections in industrialized countries, data on Arcobacter excretion patterns in cows and in milk are scant. This study aimed to identify potentially pathogenic Arcobacter species in a dairy herd and to investigate the routes of Arcobacter transmission among animals and the potential sources of cattle infection and milk contamination. A strategy of sampling the same 50 dairy animals, feed, water, and milk every month for a 10-month period, as well as the sampling of quarter milk, animal teats, the milking environment, and animals living on the farm (pigeons and cats), was used to evaluate, by pulsed-field gel electrophoresis (PFGE), the characteristic patterns in animals, their living environment, and the raw milk they produced. Of the 463 samples collected, 105 (22.6%) were positive for Arcobacter spp. by culture examination. All the matrices except quarter milk and pigeon gut samples were positive, with prevalences ranging from 15 to 83% depending on the sample. Only three Arcobacter species, Arcobacter cryaerophilus (54.2%), A. butzleri (34.2%), and A. skirrowii (32.3%), were detected. PFGE analysis of 370 isolates from positive samples provided strong evidence of Arcobacter circulation in the herd: cattle likely acquire the microorganisms by orofecal transmission, either by direct contact or from the environment, or both. Water appears to be a major source of animal infection. Raw milk produced by the farm and collected from a bulk tank was frequently contaminated (80%) by A. butzleri; our PFGE findings excluded primary contamination of milk, whereas teats and milking machine surfaces could be sources of Arcobacter milk contamination.
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Webb AL, Kruczkiewicz P, Selinger LB, Inglis GD, Taboada EN. Development of a comparative genomic fingerprinting assay for rapid and high resolution genotyping of Arcobacter butzleri. BMC Microbiol 2015; 15:94. [PMID: 25947176 PMCID: PMC4424573 DOI: 10.1186/s12866-015-0426-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 04/15/2015] [Indexed: 02/07/2023] Open
Abstract
Background Molecular typing methods are critical for epidemiological investigations, facilitating disease outbreak detection and source identification. Study of the epidemiology of the emerging human pathogen Arcobacter butzleri is currently hampered by the lack of a subtyping method that is easily deployable in the context of routine epidemiological surveillance. In this study we describe a comparative genomic fingerprinting (CGF) method for high-resolution and high-throughput subtyping of A. butzleri. Comparative analysis of the genome sequences of eleven A. butzleri strains, including eight strains newly sequenced as part of this project, was employed to identify accessory genes suitable for generating unique genetic fingerprints for high-resolution subtyping based on gene presence or absence within a strain. Results A set of eighty-three accessory genes was used to examine the population structure of a dataset comprised of isolates from various sources, including human and non-human animals, sewage, and river water (n=156). A streamlined assay (CGF40) based on a subset of 40 genes was subsequently developed through marker optimization. High levels of profile diversity (121 distinct profiles) were observed among the 156 isolates in the dataset, and a high Simpson’s Index of Diversity (ID) observed (ID > 0.969) indicate that the CGF40 assay possesses high discriminatory power. At the same time, our observation that 115 isolates in this dataset could be assigned to 29 clades with a profile similarity of 90% or greater indicates that the method can be used to identify clades comprised of genetically similar isolates. Conclusions The CGF40 assay described herein combines high resolution and repeatability with high throughput for the rapid characterization of A. butzleri strains. This assay will facilitate the study of the population structure and epidemiology of A. butzleri. Electronic supplementary material The online version of this article (doi:10.1186/s12866-015-0426-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Andrew L Webb
- Agriculture and Agri-Food Canada, 5403 - 1st Avenue S, Lethbridge, AB, Canada. .,Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada.
| | - Peter Kruczkiewicz
- Public Health Agency of Canada, Township Rd. 9-1, Lethbridge, AB, Canada.
| | - L Brent Selinger
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada.
| | - G Douglas Inglis
- Agriculture and Agri-Food Canada, 5403 - 1st Avenue S, Lethbridge, AB, Canada.
| | - Eduardo N Taboada
- Public Health Agency of Canada, Township Rd. 9-1, Lethbridge, AB, Canada.
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Ferreira S, Queiroz JA, Oleastro M, Domingues FC. Insights in the pathogenesis and resistance of Arcobacter: A review. Crit Rev Microbiol 2015; 42:364-83. [PMID: 25806423 DOI: 10.3109/1040841x.2014.954523] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Arcobacter genus currently comprises 18 recognized species, among which Arcobacter butzleri, Arcobacter cryaerophilus and Arcobacter skirrowii have been associated with human and animal disease. Although these organisms, with special emphasis A. butzleri, are emerging as clinical pathogens, several aspects of their epidemiology and virulence are only starting to be clarified. In vitro human and animal cell culture assays have been used to show that several Arcobacter species can adhere to and invade eukaryotic cells, induce an immune response and produce toxins that damage host cells. In addition, data from genome sequencing highlighted several potential markers that may be helpful candidates for the study and understanding of these mechanisms; however, more work is necessary to clarify the molecular mechanisms involved in Arcobacter virulence. Arcobacter can be considered a relatively robust organism showing to be able to survive in adverse conditions, as the ones imposed by food processing and storage. Moreover, these bacteria have shown increased antibiotic resistance, along with high multidrug resistance. In this review, we seek to update the state-of-the-art concerning Arcobacter distribution, its interaction with the host, the trends of antibiotic resistance, its ability to survive, and finally the use of natural antimicrobials for control of Arcobacter.
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Affiliation(s)
- Susana Ferreira
- a CICS-UBI-Health Sciences Research Centre, University of Beira Interior , Covilhã , Portugal and
| | - João A Queiroz
- a CICS-UBI-Health Sciences Research Centre, University of Beira Interior , Covilhã , Portugal and
| | - Mónica Oleastro
- b Department of Infectious Diseases , National Reference Laboratory for Gastrointestinal Infections, National Institute of Health Dr. Ricardo Jorge , Lisbon , Portugal
| | - Fernanda C Domingues
- a CICS-UBI-Health Sciences Research Centre, University of Beira Interior , Covilhã , Portugal and
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11
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Alonso R, Girbau C, Martinez-Malaxetxebarria I, Fernández-Astorga A. Multilocus sequence typing reveals genetic diversity of foodborne Arcobacter butzleri isolates in the North of Spain. Int J Food Microbiol 2014; 191:125-8. [PMID: 25261830 DOI: 10.1016/j.ijfoodmicro.2014.09.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 09/07/2014] [Accepted: 09/14/2014] [Indexed: 10/24/2022]
Abstract
The emerging pathogen Arcobacter butzleri is being increasingly isolated from different animal food products but the routes of its transmission to human are not well established yet. Typing methods would be useful in gaining such knowledge. Here we report the great genetic diversity observed among A. butzleri isolates from different food products. Forty-five isolates were analyzed by Multilocus Sequence Typing (MLST). A total of 157 alleles were identified across all seven loci, ranging from 16 alleles at glnA to 31 at glyA. MLST differentiated the isolates into 34 sequence types (STs), with the majority of isolates containing a unique sequence type. Seventy-four new alleles were identified, which resulted in the assignment of 33 new STs. No association of alleles or STs with food source was observed. For the first time, lateral gene transfer from Arcobacter skirrowii to A. butzleri at the glyA locus is also reported.
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Affiliation(s)
- Rodrigo Alonso
- Department of Immunology, Microbiology and Parasitology, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain
| | - Cecilia Girbau
- Department of Immunology, Microbiology and Parasitology, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain
| | - Irati Martinez-Malaxetxebarria
- Department of Immunology, Microbiology and Parasitology, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain
| | - Aurora Fernández-Astorga
- Department of Immunology, Microbiology and Parasitology, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain.
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12
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Novel microbiological and spatial statistical methods to improve strength of epidemiological evidence in a community-wide waterborne outbreak. PLoS One 2014; 9:e104713. [PMID: 25147923 PMCID: PMC4141750 DOI: 10.1371/journal.pone.0104713] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 07/16/2014] [Indexed: 12/14/2022] Open
Abstract
Failures in the drinking water distribution system cause gastrointestinal outbreaks with multiple pathogens. A water distribution pipe breakage caused a community-wide waterborne outbreak in Vuorela, Finland, July 2012. We investigated this outbreak with advanced epidemiological and microbiological methods. A total of 473/2931 inhabitants (16%) responded to a web-based questionnaire. Water and patient samples were subjected to analysis of multiple microbial targets, molecular typing and microbial community analysis. Spatial analysis on the water distribution network was done and we applied a spatial logistic regression model. The course of the illness was mild. Drinking untreated tap water from the defined outbreak area was significantly associated with illness (RR 5.6, 95% CI 1.9–16.4) increasing in a dose response manner. The closer a person lived to the water distribution breakage point, the higher the risk of becoming ill. Sapovirus, enterovirus, single Campylobacter jejuni and EHEC O157:H7 findings as well as virulence genes for EPEC, EAEC and EHEC pathogroups were detected by molecular or culture methods from the faecal samples of the patients. EPEC, EAEC and EHEC virulence genes and faecal indicator bacteria were also detected in water samples. Microbial community sequencing of contaminated tap water revealed abundance of Arcobacter species. The polyphasic approach improved the understanding of the source of the infections, and aided to define the extent and magnitude of this outbreak.
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