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Iqbal S, Qureshi S, Banday MS, Farooq S, Kashoo ZA, Gulzar M, Altaf Bhat M, Pandit A, Isfaqul Hussain M, Dar P, Badroo G, Hafiz M, Ud Din F, Mehraj J. Short variable regions flaA gene (SVR-flaA) diversity and virulence profile of multidrug resistant Campylobacter from poultry and poultry meat in India. J Food Prot 2024:100308. [PMID: 38815809 DOI: 10.1016/j.jfp.2024.100308] [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: 10/16/2023] [Revised: 05/20/2024] [Accepted: 05/22/2024] [Indexed: 06/01/2024]
Abstract
Human gastrointestinal infections caused by Campylobacter species is the second most important foodborne illness after salmonellosis worldwide. Poultry represent one of the main sources of Campylobacter organisms. In the present study the short variable region of flagellin gene (SVR-flaA) typing was carried out to determine the variation among the circulating strains of Campylobacter jejuni and Campylobacter coli. The C. jejuni and C. coli isolated from poultry and poultry meat were screened for the presence of virulence determinants like cadF, flaA, cdtB, and wlaN gene. The screening for wlaN gene is crucial in view of fact that most patients with Guillian Barre's (GB) syndrome with a preceding history of diarrhoeal illness have been found to harbour wlaN gene positive C jejuni strains. Out of the 200 samples comprising of poultry meat and cloacal swabs, 21.5% of samples were found to harbour Campylobacter spp. of which 2.5% were Campylobacter jejuni, and 19% were confirmed as Campylobacter coli. The cadF, flaA, cdtB virulence genes were detected in all the Campylobacter spp. isolated in the present study. The presence of the wlaN gene in the Campylobacter jejuni isolated in the present study may pose a public health threat with long term human health implications. The SVR-flaA typing of twelve Campylobacter isolates obtained in present study revealed that Campylobacter coli flaA sequence OL471375 is a new strain with a novel allele type 1675 and peptide sequence 5 which stands deposited in pubMLST database for Campylobacter. The other flaA-SVR gene sequences identified in this study were OL471369, OL471370, OL471371, OL471372, OL471373, and OL471374. Among twelve Campylobacter spp. three distinct DdeI-RFLP patterns were observed, each varying in size from 100 to 1000 base pairs. Antimicrobial profiling of the Campylobacter spp. isolated in present study revealed that 50% of the strains were multidrug resistant. All the Campylobacter spp. were resistant to ciprofloxacin (CIP), ampicillin (AMP), penicillin (PEN) and nalidixic acid (NAL) whereas 57.1%, of strains were resistant to tetracycline (TET) and erythromycin (ERY) 28% to amoxicillin (AMX) and enrofloxacin (ENO), 85% to amikacin (AMK). The high degree of resistance to fluoroquinoles observed in present study is crucial in view of fluoroquinolones being drugs of choice for treatment of human Campylobacter infections.
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Affiliation(s)
- Saima Iqbal
- Shere Kashmir University of Agricultural Sciences & Technology of Kashmir (SKUAST-K)
| | - Sabia Qureshi
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006.
| | - Muddasir S Banday
- Department of Clinical Pharmacology, Sheri Kashmir Institute of Medical Sciences (SKIMS), Soura
| | - Shaheen Farooq
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
| | - Zahid A Kashoo
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
| | - Maliha Gulzar
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
| | - M Altaf Bhat
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
| | - Arif Pandit
- Directorate of Research, SKUAST-K, Shalimar, Srinagar, J&K, India 190025
| | - Md Isfaqul Hussain
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
| | - Pervaiz Dar
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
| | - Gulzar Badroo
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
| | - Mahrukh Hafiz
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
| | - Faheem Ud Din
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
| | - Junaid Mehraj
- Campylobacter laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K, India-190006
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Pokhrel D, Thames HT, Zhang L, Dinh T, Schilling MW, White S, Ramachandran R, Sukumaran AT. Aerotolerance and Multi-Locus Sequence Typing of Campylobacter jejuni Isolated from Commercial Broiler Processing Plants. Foods 2023; 12:3305. [PMID: 37685237 PMCID: PMC10486707 DOI: 10.3390/foods12173305] [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: 08/03/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
Campylobacter jejuni is one of the leading causes of acute diarrhea in the United States. Despite being a microaerophilic pathogen, C. jejuni continues to endure within the domain of food production, especially in poultry processing. Recent research on aerotolerance indicates that close monitoring of this pathogen is necessary. A total of 40 C. jejuni isolates previously obtained from commercial broiler processing plants were analyzed for aerotolerance and genetic diversity. In addition, the effect of aerotolerance and storage time (days) on the survival of C. jejuni on broiler drumsticks at refrigeration (4 °C) and freezing conditions (-20 °C) was also evaluated. Out of 40 isolates, 25 (62.5%) were aero-sensitive (AS), 10 (25%) were intermediately aerotolerant (IAT), and 5 (12.5%) were hyper aerotolerant (HAT). The isolates belonged to four clonal complexes (CCs) and six sequence types, with the majority of isolates assigned to the CC-353 clonal complex. C. jejuni counts were reduced by 0.40 log CFU/g after 7 days at 4 °C and by 1.50 log CFU/g after 14 days at -20 °C, respectively, irrespective of aerotolerance (p < 0.001). At both refrigeration (p < 0.013) and freezing (p < 0.001), HAT showed greater reductions as compared to AS and IAT. These findings suggest that both refrigeration and freezing reduce C. jejuni counts.
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Affiliation(s)
- Diksha Pokhrel
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA; (D.P.); (H.T.T.); (L.Z.); (R.R.)
| | - Hudson T. Thames
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA; (D.P.); (H.T.T.); (L.Z.); (R.R.)
| | - Li Zhang
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA; (D.P.); (H.T.T.); (L.Z.); (R.R.)
| | - Thu Dinh
- Tyson Foods, 2200 W. Don Tyson Parkway, Springdale, AR 72762, USA;
| | - M. Wes Schilling
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Starkville, MS 39762, USA; (M.W.S.)
| | - Shecoya White
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Starkville, MS 39762, USA; (M.W.S.)
| | - Reshma Ramachandran
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA; (D.P.); (H.T.T.); (L.Z.); (R.R.)
| | - Anuraj T. Sukumaran
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA; (D.P.); (H.T.T.); (L.Z.); (R.R.)
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Napit R, Manandhar P, Poudel A, Rajbhandari PG, Watson S, Shakya S, Pradhan SM, Sharma AN, Chaudhary A, Johnson CK, Mazet JK, Karmacharya D. Novel strains of Campylobacter cause diarrheal outbreak in Rhesus macaques (Macaca mulatta) of Kathmandu Valley. PLoS One 2023; 18:e0270778. [PMID: 36857401 PMCID: PMC9977009 DOI: 10.1371/journal.pone.0270778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 01/06/2023] [Indexed: 03/02/2023] Open
Abstract
Campylobacter spp. is often underreported and underrated bacteria that present real health risks to both humans and animals, including non-human primates. It is a commensal microorganism of gastrointestinal tract known to cause gastroenteritis in humans. Commonly found in many wild animals including non-human primates (monkeys- Rhesus macaques) these pathogens are known to be a common cause of diarrhea in humans in many parts of developing and under developed countries. Rhesus macaques from the two holy sites in Kathmandu (Pashupati and Swoyambhu) were included in this cross-sectional study. Diarrheal samples of monkeys were analyzed to detect and characterize the pathogen using 16S rRNA-based PCR screening, followed by DNA sequencing and phylogenetic analysis. Out of a total 67 collected diarrheal samples, Campylobacter spp. were detected in the majority of the samples (n = 64; 96%). DNA sequences of the amplified PCR products were successfully obtained from 13 samples. Phylogenetic analysis identified Candidatus Campylobacter infans (n = 10, Kimura-2 parameter (K2P) pairwise distance values of 0.002287). Remaining three sequences might potentially belong to a novel Campylobacter species/sub-species- closely relating to known species of C. helviticus (K2P pairwise distance of 0.0267). Both Candidatus Campylobacter infans and C. helvitucus are known to infect humans and animals. Additionally, we also detected the bacteria in water and soil samples from the sites. Campylobacter spp. caused the 2018 diarrhea outbreak in Rhesus macaques in the Kathmandu valley. Campylobacter might be one of the important contributing pathogens in diarrheal outbreaks-both in humans and animals (monkeys) in Nepal. Due to close interactions of these animals with humans and other animals, One Health approach might be the most effective way to prevent and mitigate the threat posed by this pathogen.
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Affiliation(s)
- Rajindra Napit
- One Health Research Division, Center for Molecular Dynamics Nepal, Kathmandu, Nepal
- Research Division, BIOVAC Nepal Pvt. Ltd., Nala, Banepa, Nepal
| | - Prajwol Manandhar
- One Health Research Division, Center for Molecular Dynamics Nepal, Kathmandu, Nepal
- Research Division, BIOVAC Nepal Pvt. Ltd., Nala, Banepa, Nepal
| | - Ajit Poudel
- One Health Research Division, Center for Molecular Dynamics Nepal, Kathmandu, Nepal
- Research Division, BIOVAC Nepal Pvt. Ltd., Nala, Banepa, Nepal
| | | | - Sarah Watson
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sapana Shakya
- One Health Research Division, Center for Molecular Dynamics Nepal, Kathmandu, Nepal
| | - Saman M. Pradhan
- One Health Research Division, Center for Molecular Dynamics Nepal, Kathmandu, Nepal
- Research Division, BIOVAC Nepal Pvt. Ltd., Nala, Banepa, Nepal
| | - Ajay N. Sharma
- One Health Research Division, Center for Molecular Dynamics Nepal, Kathmandu, Nepal
| | - Ashok Chaudhary
- One Health Research Division, Center for Molecular Dynamics Nepal, Kathmandu, Nepal
| | - Christine K. Johnson
- One Health Institute, School of Veterinary Medicine, University of California, Davis, CA, United States of America
| | - Jonna K. Mazet
- One Health Institute, School of Veterinary Medicine, University of California, Davis, CA, United States of America
| | - Dibesh Karmacharya
- One Health Research Division, Center for Molecular Dynamics Nepal, Kathmandu, Nepal
- Research Division, BIOVAC Nepal Pvt. Ltd., Nala, Banepa, Nepal
- The School of Biological Sciences, University of Queensland, Queensland, Australia
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Chagneau S, Gaucher ML, Thériault WP, Fravalo P, Thibodeau A. Observations supporting hypothetical commensalism and competition between two Campylobacter jejuni strains colonizing the broiler chicken gut. Front Microbiol 2023; 13:1071175. [PMID: 36817113 PMCID: PMC9937062 DOI: 10.3389/fmicb.2022.1071175] [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: 10/15/2022] [Accepted: 12/22/2022] [Indexed: 01/27/2023] Open
Abstract
Campylobacter jejuni is the most prevalent bacterial foodborne pathogen in humans. Given the wide genetic diversity of C. jejuni strains found in poultry production, a better understanding of the relationships between these strains within chickens could lead to better control of this pathogen on farms. In this study, 14-day old broiler chickens were inoculated with two C. jejuni strains (103 or 107 CFU of D2008b and 103 CFU of G2008b, alone or together) that were previously characterized in vitro and that showed an opposite potential to compete for gut colonization in broilers. Liver samples and ileal and cecal contents were collected and used to count total C. jejuni and to quantify the presence of each strain using a strain specific qPCR or PCR approach. Ileal tissue samples were also collected to analyze the relative expression level of tight junction proteins. While a 103 CFU inoculum of D2008b alone was not sufficient to induce intestinal colonization, this strain benefited from the G2008b colonization for its establishment in the gut and its extraintestinal spread. When the inoculum of D2008b was increased to 107 CFU - leading to its intestinal and hepatic colonization - a dominance of G2008b was measured in the gut and D2008b was found earlier in the liver for birds inoculated by both strains. In addition, a transcript level decrease of JAM2, CLDN5 and CLDN10 at 7 dpi and a transcript level increase of ZO1, JAM2, OCLN, CLDN10 were observed at 21 dpi for groups of birds having livers contaminated by C. jejuni. These discoveries suggest that C. jejuni would alter the intestinal barrier function probably to facilitate the hepatic dissemination. By in vitro co-culture assay, a growth arrest of D2008b was observed in the presence of G2008b after 48 h of culture. Based on these results, commensalism and competition seem to occur between both C. jejuni strains, and the dynamics of C. jejuni intestinal colonization and liver spread in broilers appear to be strain dependent. Further in vivo experimentations should be conducted to elucidate the mechanisms of commensalism and competition between strains in order to develop adequate on-farm control strategies.
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Affiliation(s)
- Sophie Chagneau
- Research Chair in Meat Safety, Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada,Swine and Poultry Infectious Diseases Research Center (CRIPA), Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada,*Correspondence: Sophie Chagneau, ✉
| | - Marie-Lou Gaucher
- Research Chair in Meat Safety, Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada,Swine and Poultry Infectious Diseases Research Center (CRIPA), Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada,Groupe de Recherche sur les Maladies Infectieuses en Production Animale (GREMIP), Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - William P. Thériault
- Research Chair in Meat Safety, Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada,Swine and Poultry Infectious Diseases Research Center (CRIPA), Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
| | - Philippe Fravalo
- Chaire Agroalimentaire du Conservatoire National des Arts et Métiers, Paris, France
| | - Alexandre Thibodeau
- Research Chair in Meat Safety, Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada,Swine and Poultry Infectious Diseases Research Center (CRIPA), Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada,Groupe de Recherche sur les Maladies Infectieuses en Production Animale (GREMIP), Department of Pathology and Microbiology, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada,Alexandre Thibodeau, ✉
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Khemnu N, Serichantalergs O, Ruekit S, Lertsethtakarn P, Poly F, Swierczewski BE, Crawford JM. Description of novel capsule biosynthesis loci of Campylobacter jejuni clinical isolates from South and South-East Asia. PLoS One 2023; 18:e0280583. [PMID: 36662748 PMCID: PMC9858101 DOI: 10.1371/journal.pone.0280583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/04/2023] [Indexed: 01/21/2023] Open
Abstract
Campylobacter jejuni is a major cause of bacterial diarrhea worldwide and associated with numerous sequela, including Guillain-Barré Syndrome, inflammatory bowel disease, reactive arthritis, and irritable bowel syndrome. C. jejuni is unusual for an intestinal pathogen in its ability to coat its surface with a polysaccharide capsule (CPS). The genes responsible for the biosynthesis of the phase variable CPS is located in the hypervariable region of C. jejuni genome which has been used to develop multiplex PCR to classify CPS types based on the Penner serotypes. However, there still are non-typable CPS C. jejuni by the current multiplex PCR scheme. The application of the next generation sequencing and whole genome analysis software were used for the identification of novel capsule biosynthesis of C. jejuni isolates. Unique PCR primers were designed to identify these new capsule biosynthesis loci. The designed primers sets were combined in a new multiplex mix called epsilon. The unique sequences provide an additional information of the biosynthesis loci responsible for some of the common CPS sugars/residues such as heptose, deoxtyheptose and MeOPN among C. jejuni in this new group of CPS multiplex assay. This new primer complements the current C. jejuni multiplex capsule typing system and will help in identifying previously untypeable capsule locus of C. jejuni isolates.
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Affiliation(s)
- Nuanpan Khemnu
- Department of Bacteria and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - Oralak Serichantalergs
- Department of Bacteria and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - Sirigade Ruekit
- Department of Bacteria and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - Paphavee Lertsethtakarn
- Department of Bacteria and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - Frédéric Poly
- Enteric Diseases Department, Naval Medical Research Center, San Diego, MD, United States of America
| | - Brett E. Swierczewski
- Department of Bacteria and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
| | - John M. Crawford
- Department of Bacteria and Parasitic Diseases, Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok, Thailand
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dessouky YE, Elsayed SW, Abdelsalam NA, Saif NA, Álvarez-Ordóñez A, Elhadidy M. Genomic insights into zoonotic transmission and antimicrobial resistance in Campylobacter jejuni from farm to fork: a one health perspective. Gut Pathog 2022; 14:44. [PMID: 36471447 PMCID: PMC9721040 DOI: 10.1186/s13099-022-00517-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/08/2022] [Indexed: 12/09/2022] Open
Abstract
BACKGROUND Campylobacteriosis represents a global public health threat with various socio-economic impacts. Among different Campylobacter species, Campylobacter jejuni (C. jejuni) is considered to be the foremost Campylobacter species responsible for most of gastrointestinal-related infections. Although these species are reported to primarily inhabit birds, its high genetic and phenotypic diversity allowed their adaptation to other animal reservoirs and to the environment that may impact on human infection. MAIN BODY A stringent and consistent surveillance program based on high resolution subtyping is crucial. Recently, different epidemiological investigations have implemented high-throughput sequencing technologies and analytical pipelines for higher resolution subtyping, accurate source attribution, and detection of antimicrobial resistance determinants among these species. In this review, we aim to present a comprehensive overview on the epidemiology, clinical presentation, antibiotic resistance, and transmission dynamics of Campylobacter, with specific focus on C. jejuni. This review also summarizes recent attempts of applying whole-genome sequencing (WGS) coupled with bioinformatic algorithms to identify and provide deeper insights into evolutionary and epidemiological dynamics of C. jejuni precisely along the farm-to-fork continuum. CONCLUSION WGS is a valuable addition to traditional surveillance methods for Campylobacter. It enables accurate typing of this pathogen and allows tracking of its transmission sources. It is also advantageous for in silico characterization of antibiotic resistance and virulence determinants, and hence implementation of control measures for containment of infection.
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Affiliation(s)
- Yara El dessouky
- grid.440881.10000 0004 0576 5483Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt ,grid.440881.10000 0004 0576 5483Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Salma W. Elsayed
- grid.440881.10000 0004 0576 5483Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt ,grid.440881.10000 0004 0576 5483Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt ,grid.7269.a0000 0004 0621 1570Department of Microbiology and Immunology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Nehal Adel Abdelsalam
- grid.440881.10000 0004 0576 5483Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt ,grid.440881.10000 0004 0576 5483Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt ,grid.7776.10000 0004 0639 9286Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Nehal A. Saif
- grid.440881.10000 0004 0576 5483Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt ,grid.440881.10000 0004 0576 5483Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Avelino Álvarez-Ordóñez
- grid.4807.b0000 0001 2187 3167Department of Food Hygiene and Technology and Institute of Food Science and Technology, Universidad de León, León, Spain
| | - Mohamed Elhadidy
- grid.440881.10000 0004 0576 5483Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt ,grid.440881.10000 0004 0576 5483Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt ,grid.10251.370000000103426662Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
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Araújo PM, Batista E, Fernandes MH, Fernandes MJ, Gama LT, Fraqueza MJ. Assessment of biofilm formation by Campylobacter spp. isolates mimicking poultry slaughterhouse conditions. Poult Sci 2022; 101:101586. [PMID: 34896965 PMCID: PMC8664863 DOI: 10.1016/j.psj.2021.101586] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 12/16/2022] Open
Abstract
This research aimed to assess the biofilm formation ability of Campylobacter strains under temperature and oxygen stress conditions, similar to those found in the industrial environment, to explain the persistence of this pathogen on the poultry slaughter line. A collection of C. jejuni and C. coli isolates (n = 143) obtained from poultry samples (cecal content and neck skin), collected at slaughterhouse level, from diverse flocks, on different working days, was genotyped by flaA-restriction fragment length polymorphism (RFLP) typing method. A clustering analysis resulted in the assignment of 10 main clusters, from which 15 strains with different flaA-RFLP genotypes were selected for the assessment of biofilm formation ability and antimicrobial susceptibility. Biofilm assays, performed by crystal violet staining method, were conducted with the goal of mimicking some conditions present at the slaughterhouse environment, based on temperature, atmosphere, and contamination levels. Results indicated that many C. jejuni strains with similar flaA-RFLP profiles were present at the slaughterhouse on different processing days. All the strains tested (n = 15) were multidrug-resistant except for one. Biofilm formation ability was strain-dependent, and it appeared to have been affected by inoculum concentration, temperature, and tolerance to oxygen levels. At 10°C, adherence levels were significantly lower than at 42°C. Under microaerobic and aerobic atmospheres, at 42°C, 3 strains (C. jejuni 46E, C. jejuni 61C, and C. coli 65B) stood out, exhibiting significant levels of biofilm formation. C. jejuni strains 46E and 61C were inserted in clusters with evidence of persistence at the slaughterhouse for a long period of time. This study demonstrated that Campylobacter strains from broilers are capable of forming biofilms under conditions resembling the slaughterhouse environment. These results should be seen as a cue to improve the programs of hygiene implemented, particularly in those zones that can promote biofilm formation.
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Affiliation(s)
- P M Araújo
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon 1300-477, Portugal
| | - E Batista
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon 1300-477, Portugal
| | - M H Fernandes
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon 1300-477, Portugal
| | - M J Fernandes
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon 1300-477, Portugal
| | - L T Gama
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon 1300-477, Portugal
| | - M J Fraqueza
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon 1300-477, Portugal.
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Bertin PN, Crognale S, Plewniak F, Battaglia-Brunet F, Rossetti S, Mench M. Water and soil contaminated by arsenic: the use of microorganisms and plants in bioremediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:9462-9489. [PMID: 34859349 PMCID: PMC8783877 DOI: 10.1007/s11356-021-17817-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 11/23/2021] [Indexed: 04/16/2023]
Abstract
Owing to their roles in the arsenic (As) biogeochemical cycle, microorganisms and plants offer significant potential for developing innovative biotechnological applications able to remediate As pollutions. This possible use in bioremediation processes and phytomanagement is based on their ability to catalyse various biotransformation reactions leading to, e.g. the precipitation, dissolution, and sequestration of As, stabilisation in the root zone and shoot As removal. On the one hand, genomic studies of microorganisms and their communities are useful in understanding their metabolic activities and their interaction with As. On the other hand, our knowledge of molecular mechanisms and fate of As in plants has been improved by laboratory and field experiments. Such studies pave new avenues for developing environmentally friendly bioprocessing options targeting As, which worldwide represents a major risk to many ecosystems and human health.
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Affiliation(s)
- Philippe N Bertin
- Génétique Moléculaire, Génomique et Microbiologie, UMR7156 CNRS - Université de Strasbourg, Strasbourg, France.
| | - Simona Crognale
- Water Research Institute, National Research Council of Italy (IRSA - CNR), Rome, Italy
| | - Frédéric Plewniak
- Génétique Moléculaire, Génomique et Microbiologie, UMR7156 CNRS - Université de Strasbourg, Strasbourg, France
| | | | - Simona Rossetti
- Water Research Institute, National Research Council of Italy (IRSA - CNR), Rome, Italy
| | - Michel Mench
- Univ. Bordeaux, INRAE, BIOGECO, F-33615, Pessac, France
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9
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Detection of Fusobacterium nucleatum subspecies in the saliva of pre-colorectal cancer patients, using tandem mass spectrometry. Arch Oral Biol 2021; 134:105337. [PMID: 34929558 DOI: 10.1016/j.archoralbio.2021.105337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 11/25/2021] [Accepted: 12/06/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Rising evidence links Fusobacterium nucleatum (F. nucleatum) with its four subspecies; nucleatum, polymorphum, animalis, and vincentii, with the development of colorectal cancer (CRC) and its precursor colorectal adenoma (CRA). This study aims to optimize a technique for and explore the capability of matrix-assisted laser-desorption ionization-tandem time-of-flight mass spectrometry (MALDI-TOF/TOF MS) to detect F. nucleatum subspecies directly from the saliva samples of CRA patients and controls without preculturing. DESIGN Saliva samples were collected from four CRA patients and eight controls. Proteins were extracted and subjected to solid-phase extraction fractionation, enzymatically digested, and analyzed by MALDI-TOF/TOF MS. F. nucleatum subspecies strains were cultured and used as a positive control. RESULTS A proteomics approach was developed to identify F. nucleatum subspecies directly from saliva samples. With this approach, the bacterial culturing step, which could take up to seven days, was bypassed. Overall, 157 F. nucleatum subspecies proteins were detected in the saliva samples. F. nucleatum subsp. nucleatum was absent in the patients while detected in half of the controls. CONCLUSION This study presents a novel technique for detecting F. nucleatum subspecies from saliva specimens that could later be employed to better understand a potential role of those subspecies in CRC development.
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10
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Bai J, Chen Z, Luo K, Zeng F, Qu X, Zhang H, Chen K, Lin Q, He H, Liao M, Zhang J. Highly Prevalent Multidrug-Resistant Campylobacter spp. Isolated From a Yellow-Feathered Broiler Slaughterhouse in South China. Front Microbiol 2021; 12:682741. [PMID: 34220768 PMCID: PMC8242590 DOI: 10.3389/fmicb.2021.682741] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/10/2021] [Indexed: 12/03/2022] Open
Abstract
The purpose of this study was to investigate the prevalence, antimicrobial resistance, virulence genes, and genetic diversity of Campylobacter spp. along the yellow-feathered broiler slaughtering line in Southern China from December 2018 to June 2019. A total of 157 Campylobacter spp. isolates were identified from 1,102 samples (including 53.6% (75/140) of live chicken anal swab samples, 27.5% (44/160) of defeathering samples, 18.1% (29/160) of evisceration samples, 2.1% (3/140) of washing samples, 1.4% (2/140) of chilling samples, and 1.1% (4/362) of environmental samples). The prevalence of Campylobacter spp. was 14.2%, including 43.9% Campylobacter jejuni, 53.5% Campylobacter coli, and 2.5% other Campylobacter species. The highest antimicrobial resistance rate was found to be against sulfamethoxazole (138/157, 87.9%), and 90.4% (142/157) of the isolates were multidrug resistant (MDR). Examination of resistance-related genes revealed the double base mutated Thr-86-Ile, which informed ACA-TTA, with an Arg-79-Lys substitution in gyrA. Eleven virulence-associated genes (cadF, cdtA, cdtB, ciaB, flaA, imaA, dnaJ, plaA, virB11, racR, and cdtC) were also detected by a polymerase chain reaction (PCR) analysis, and cadF (81.5%) was the most prevalent. Based on an analysis of pulsed-field gel electrophoresis (PFGE) results, we found that Campylobacter spp. could be cross-contaminated throughout the entire slaughtering line. These results show that it is imperative to study the Campylobacter spp. from the yellow-feathered broiler along the slaughtering line in China to develop preventative and treatment measures for the poultry industry, as well as food safety and public health.
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Affiliation(s)
- Jie Bai
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zhengquan Chen
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Kaijian Luo
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Fanliang Zeng
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xiaoyun Qu
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Hongxia Zhang
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Kaifeng Chen
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Qijie Lin
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Haishan He
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Ming Liao
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Jianmin Zhang
- Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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11
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Mohamed HAA, Williams LK, van Klink E. The diversity of Campylobacter spp. throughout the poultry processing plant. Zoonoses Public Health 2021; 68:769-780. [PMID: 34018343 DOI: 10.1111/zph.12852] [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: 09/22/2020] [Accepted: 05/01/2021] [Indexed: 12/01/2022]
Abstract
Campylobacteriosis is the leading food-borne disease in developed countries, and poultry are a major source for human infection. The diversity of Campylobacter on chicken carcasses during processing may lead to isolates that are able to survive abattoir processing. This has important implications for public health and adds a further layer to the complexity of the epidemiology of campylobacteriosis. The diversity of the Campylobacter spp. populations on broiler carcasses was studied at three different stages of processing (post-bleed, post-scald and post-chill) in three UK processing plants, using the pulsed-field gel electrophoresis (PFGE) KpnI enzyme. One hundred and sixty Campylobacter strains from 3 processing plants were identified as C. jejuni (92.3%) with 27 PFGE subtype profiles recovered from carcasses at the post-bleed point. Change in populations was identified when carcasses move towards the end of poultry processing. Seven C. jejuni genotypes were able to survive the scalding tank stage process, and 5 genotypes surviving the entire poultry process. Confirmation by PFGE gives information on the genotypic profiles of C. jejuni on chicken carcasses and how they change according to the temperatures exposed to during processing. Diversity within C. jejuni populations produces genotypes that adapt to tolerate the processing environment, and these may be capable of causing human disease. Understanding more about the genotypes that survive the processing will have important implications for public health.
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Affiliation(s)
| | - Lisa K Williams
- Department of Animal and Agriculture, Hartpury University, Gloucester, UK
| | - Ed van Klink
- Bristol Veterinary School, University of Bristol, Bristol, UK
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12
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Antimicrobial Resistance, FlaA Sequencing, and Phylogenetic Analysis of Campylobacter Isolates from Broiler Chicken Flocks in Greece. Vet Sci 2021; 8:vetsci8050068. [PMID: 33919370 PMCID: PMC8143292 DOI: 10.3390/vetsci8050068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/17/2021] [Accepted: 04/19/2021] [Indexed: 01/22/2023] Open
Abstract
Human campylobacteriosis caused by thermophilic Campylobacter species is the most commonly reported foodborne zoonosis. Consumption of contaminated poultry meat is regarded as the main source of human infection. This study was undertaken to determine the antimicrobial susceptibility and the molecular epidemiology of 205 Campylobacter isolates derived from Greek flocks slaughtered in three different slaughterhouses over a 14-month period. A total of 98.5% of the isolates were resistant to at least one antimicrobial agent. In terms of multidrug resistance, 11.7% of isolates were resistant to three or more groups of antimicrobials. Extremely high resistance to fluoroquinolones (89%), very high resistance to tetracycline (69%), and low resistance to macrolides (7%) were detected. FlaA sequencing was performed for the subtyping of 64 C. jejuni and 58 C. coli isolates. No prevalence of a specific flaA type was observed, indicating the genetic diversity of the isolates, while some flaA types were found to share similar antimicrobial resistance patterns. Phylogenetic trees were constructed using the neighbor-joining method. Seven clusters of the C. jejuni phylogenetic tree and three clusters of the C. coli tree were considered significant with bootstrap values >75%. Some isolates clustered together were originated from the same or adjacent farms, indicating transmission via personnel or shared equipment. These results are important and help further the understanding of the molecular epidemiology and antimicrobial resistance of Campylobacter spp. derived from poultry in Greece.
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13
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Hoque N, Islam SKS, Uddin MN, Arif M, Haque AKMZ, Neogi SB, Hossain MM, Yamasaki S, Kabir SML. Prevalence, Risk Factors, and Molecular Detection of Campylobacter in Farmed Cattle of Selected Districts in Bangladesh. Pathogens 2021; 10:313. [PMID: 33800065 PMCID: PMC7998914 DOI: 10.3390/pathogens10030313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 11/16/2022] Open
Abstract
A cross-sectional survey was conducted in selected districts of Bangladesh to estimate prevalence, risk factors, and molecular detection of Campylobacter isolates from 540 farmed cattle of 90 herds. As an individual sample, 540 feces, and as a pooled sample, 180 milk samples, 90 feed samples, 90 water samples, 90 manure samples, and 90 animal attendants' hand-rinse water were collected and tested via culture, biochemical, and molecular assays. A pretested semi-structured questionnaire was used to collect herd-level data on risk factors with the herd owners. The herd-level data on risk factors were analyzed through univariate and multivariate analyses, and a p-value <0.05 was considered statistically significant for all analyses. Overall, farm-level prevalence of bovine Campylobacter was enumerated to be 53.3% (95% confidence interval [CI]: 42.5-63.9%). The feces sample was found to be a high level of contamination of 30.9% (95% CI: 27-35%) followed by the manure swab (pooled) at 15.6% (95% CI: 8.8-24.7%). Campylobacter jejuni was documented as an abundant species (12.6%), followed by Campylobacter coli (5.1%), and Campylobacter fetus (0.3%). Older farms (>5 years of age), no/minimum cleaning and disinfection practices, along with animal roaming outside of the farm, were documented as significant risk factors for farm-level Campylobacter occurrence. Evidence-based control measures need to be taken through stringent biosecurity and hygienic measurement to lessen the load of the Campylobacter pathogen in the farm environment and prevent further transmission to animals and humans.
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Affiliation(s)
- Nazmul Hoque
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (N.H.); (S.S.I.); (M.N.U.); (M.A.); (A.K.M.Z.H.)
| | - SK Shaheenur Islam
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (N.H.); (S.S.I.); (M.N.U.); (M.A.); (A.K.M.Z.H.)
| | - Md. Nasir Uddin
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (N.H.); (S.S.I.); (M.N.U.); (M.A.); (A.K.M.Z.H.)
| | - Mohammad Arif
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (N.H.); (S.S.I.); (M.N.U.); (M.A.); (A.K.M.Z.H.)
| | - A. K. M. Ziaul Haque
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (N.H.); (S.S.I.); (M.N.U.); (M.A.); (A.K.M.Z.H.)
| | - Sucharit Basu Neogi
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan; (S.B.N.); (S.Y.)
| | - Md. Mehedi Hossain
- Program Specialist (Livestock), Krishi Gobeshona Foundation (KGF), Dhaka 1215, Bangladesh;
| | - Shinji Yamasaki
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan; (S.B.N.); (S.Y.)
| | - S. M. Lutful Kabir
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (N.H.); (S.S.I.); (M.N.U.); (M.A.); (A.K.M.Z.H.)
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14
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Igwaran A, Okoh AI. Molecular determination of genetic diversity among Campylobacter jejuni and Campylobacter coli isolated from milk, water, and meat samples using enterobacterial repetitive intergenic consensus PCR (ERIC-PCR). Infect Ecol Epidemiol 2020; 10:1830701. [PMID: 33133420 PMCID: PMC7580821 DOI: 10.1080/20008686.2020.1830701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Consumption of contaminated meat, milk, and water are among the major routes of human campylobacteriosis. This study aimed to determined the genetic diversity of C. coli and C. jejuni isolated from meat, milk, and water samples collected from different locations. From the 376 samples (meat = 248, cow milk = 72, and water = 56) collected, a total of 1238 presumptive Campylobacter isolates were recovered and the presence of the genus Campylobacter were detected in 402 isolates, and from which, 85 and 67 isolates were identified asC. jejuni and C. coli respectively. Of which, 71 isolates identified as C. coli (n = 35) and C. jejuni (n = 36) were randomly selected from meat, milk, and water samples and were genotyped using enterobacterial repetitive intergenic consensus PCR (ERIC-PCR). The digital images of the ERIC-PCR genotype were analyzed by GelJ v.2.0 software. The diversity and similarity of the isolates were assessed via an unweighted-pair group method using average linkages clustering algorithm. The results showed that the 36 C. jejuni strains separated into 29 ERIC-genotypes and 4 clusters while the 35 C. coli were delineated into 29 ERIC-genotypes and 6 clusters. The study revealed the genetic diversity among C. coli and C. jejuni strains recovered from different matrices characterized by Gelj.
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Affiliation(s)
- Aboi Igwaran
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa.,Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
| | - Anthony Ifeanyi Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa.,Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
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15
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Gitahi N, Gathura PB, Gicheru MM, Wandia BM, Nordin A. Multidrug-resistant Campylobacter jejuni, Campylobacter coli and Campylobacter lari isolated from asymptomatic school-going children in Kibera slum, Kenya. F1000Res 2020; 9:92. [PMID: 37363437 PMCID: PMC10285328 DOI: 10.12688/f1000research.21299.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/25/2020] [Indexed: 10/10/2023] Open
Abstract
Background: The objective of this study was to determine the prevalence of thermophilic Campylobacter spp. in asymptomatic school-going children and establish the antibiotic resistance patterns of the isolates towards the drugs used to treat campylobacteriosis, including macrolides, quinolones and tetracycline. Campylobacter spp. are a leading cause of enteric illness and have only recently shown resistance to antibiotics. Methods: This study isolated Campylobacter spp., including Campylobacter coli, Campylobacter jejuni and Campylobacter lari, in stool samples from asymptomatic school-going children in one of the biggest urban slums in Kenya. The disc diffusion method using EUCAST breakpoints was used to identify antibiotic-resistant isolates, which were further tested for genes encoding for tetracycline resistance using primer-specific polymerase chain reaction. Results: In total, 580 stool samples were collected from 11 primary schools considering both gender and age. Subjecting 294 biochemically characterized Campylobacter spp. isolates to genus-specific PCR, 106 (18.27% of stool samples) isolates were confirmed Campylobacter spp. Out of the 106 isolates, 28 (4.83%) were Campylobacter coli, 44 (7.58%) were Campylobacter jejuni while 11 (1.89%) were Campylobacter lari. Campylobacter jejuni had the highest number of isolates that were multi-drug resistant, with 26 out of the 28 tested isolates being resistant to ciprofloxacin (5 mg), nalidixic acid (30 mg), tetracycline (30 mg) and erythromycin (15 mg). Conclusions: In conclusion, asymptomatic school going children in the study area were found to be carriers of multidrug resistant Campylobacter coli, Campylobacter jejuni and Campylobacter lari at 84%. A one-health approach, which considers overlaps in environment, animals and human ecosystems, is recommended in addressing multidrug resistane in Campylobacter, since animals are the main reservoirs and environmental contamination is evident.
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Affiliation(s)
- Nduhiu Gitahi
- Department of Public Health, Pharmacology & Toxicology, University of Nairobi, Nairobi, 00100, Kenya
| | - Peter B. Gathura
- Department of Public Health, Pharmacology & Toxicology, University of Nairobi, Nairobi, 00100, Kenya
| | - Michael M. Gicheru
- Department of Zoological Sciences, Kenyatta University, Nairobi, 00100, Kenya
| | - Beautice M. Wandia
- Department of Public Health, Pharmacology & Toxicology, University of Nairobi, Nairobi, 00100, Kenya
| | - Annika Nordin
- Department of Energy and Technology, Swedish University of Agricultural Science, Uppsala, Sweden
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16
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Sharma A, Lee S, Park YS. Molecular typing tools for identifying and characterizing lactic acid bacteria: a review. Food Sci Biotechnol 2020; 29:1301-1318. [PMID: 32995049 PMCID: PMC7492335 DOI: 10.1007/s10068-020-00802-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 02/08/2023] Open
Abstract
Identification and classification of beneficial microbes is of the highest significance in food science and related industries. Conventional phenotypic approaches pose many challenges, and they may misidentify a target, limiting their use. Genotyping tools show comparatively better prospects, and they are widely used for distinguishing microorganisms. The techniques already employed in genotyping of lactic acid bacteria (LAB) are slightly different from one another, and each tool has its own advantages and disadvantages. This review paper compiles the comprehensive details of several fingerprinting tools that have been used for identifying and characterizing LAB at the species, sub-species, and strain levels. Notably, most of these approaches are based on restriction digestion, amplification using polymerase chain reaction, and sequencing. Nowadays, DNA sequencing technologies have made considerable progress in terms of cost, throughput, and methodology. A research journey to develop improved versions of generally applicable and economically viable tools for fingerprinting analysis is ongoing globally.
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Affiliation(s)
- Anshul Sharma
- Department of Food and Nutrition, Gachon University, Seongnam, 13120 Republic of Korea.,Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Bajhol, Solan, Himachal Pradesh 173229 India
| | - Sulhee Lee
- Research Group of Healthcare, Korea Food Research Institute, Wanju, 55365 Republic of Korea
| | - Young-Seo Park
- Department of Food Science and Biotechnology, Gachon University, Seongnam, 13120 Republic of Korea
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17
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Molecular epidemiology of Campylobacter jejuni isolates from the broiler production chain: first report of MLST profiles in Argentina. Rev Argent Microbiol 2020; 53:59-63. [PMID: 32736818 DOI: 10.1016/j.ram.2020.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/26/2020] [Accepted: 06/16/2020] [Indexed: 11/24/2022] Open
Abstract
Campylobacter jejuni is an important foodborne pathogen with global distribution. We describe a genotyping study of a collection of C. jejuni (n=137) isolated from different broiler farms and from multiple sites along the processing line in a slaughterhouse in Argentina during 2011, 2012 and 2015. The isolates were genotyped using pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). Based on the PFGE results, the isolates were grouped into 26 pulsotypes. Subsequently, the isolates representing these 26 pulsotypes were chosen for MLST genotyping, which identified 16 different sequence types (STs) and 6 clonal complexes (CCs) (21, 45, 48, 353, 354, 446). Several of the STs (n=7) have not been previously reported in the PubMLST.org database. The most prevalent CCs were 21, 45 (both associated with human campylobacteriosis worldwide) and 353. This study showed high genetic diversity among C. jejuni in the broiler production environment in Argentina with novel MLST genotypes.
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18
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Aydin F, Abay M, Şahin O, Abay S, Karakaya E, Müştak İB, Müştak HK, Gümüşsoy KS, Kayman T. Species distribution, genetic diversity and antimicrobial susceptibility of Campylobacter isolates recovered from the preputial cavity of healthy rams in Turkey. J Appl Microbiol 2020; 129:1173-1184. [PMID: 32416023 DOI: 10.1111/jam.14703] [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: 01/09/2020] [Revised: 05/06/2020] [Accepted: 05/08/2020] [Indexed: 11/30/2022]
Abstract
AIMS Campylobacter sp. are important causes of reproductive disease in ruminants worldwide. Although healthy bulls are well-known carriers for infection of cows, the role of rams as a potential source for infecting ewes is unclear. This study aimed to determine prevalence, species distribution, genetic diversity and antimicrobial susceptibility profiles of Campylobacter sp. isolated from the preputial cavity of healthy rams. METHODS AND RESULTS The material of this prospective study comprised 191 swab samples taken from the preputial cavity of healthy rams. Enrichment and membrane filtration were employed for the isolation of Campylobacter. Presumptive isolates were confirmed as Campylobacter by phenotypic and molecular tests. 16S rRNA gene sequence analysis was used for the definitive identification of the isolates at species level, and genotyping was performed using pulsed-field gel electrophoresis (PFGE). The susceptibility of the Campylobacter sp. isolates to various antibiotics was determined by the disk diffusion test. In all, 27 of the 191 (14·13%) swab samples were found to be positive for Campylobacter sp. (28 isolates were recovered in total). Per phenotypic and genotypic analyses, one isolate was identified as Campylobacter mucosalis and the remaining 27 isolates were identified as Campylobacter sputorum bv. faecalis. The PFGE analysis of the C. sputorum biovar faecalis isolates produced 17 clusters and 24 different pulsotypes, indicating high genetic heterogeneity. All 28 isolates were found to be susceptible to all of the antibiotics tested. CONCLUSIONS Healthy rams may be an important reservoir of different Campylobacter species in the preputium. SIGNIFICANCE AND IMPACT OF THE STUDY This study demonstrated for the first time that healthy rams can carry different Campylobacter sp. including genetically diverse C. sputorum bv. faecalis and C. mucosalis in the preputial cavity. Further investigation on the potential implication of this finding on sheep reproductive health (e.g. infectious infertility, and abortion) and overall epidemiology of Campylobacter may be warranted.
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Affiliation(s)
- F Aydin
- Department of Microbiology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - M Abay
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - O Şahin
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - S Abay
- Department of Microbiology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - E Karakaya
- Department of Microbiology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - İ B Müştak
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - H K Müştak
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - K S Gümüşsoy
- Department of Microbiology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - T Kayman
- Medical Microbiology Clinic, Şişli Hamidiye Etfal Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
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19
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Frazão MR, de Souza RA, Medeiros MIC, da Silva Duque S, Cao G, Allard MW, Falcão JP. Molecular typing of Campylobacter jejuni strains: comparison among four different techniques. Braz J Microbiol 2020; 51:519-525. [PMID: 31872391 PMCID: PMC7203312 DOI: 10.1007/s42770-019-00218-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 12/17/2019] [Indexed: 11/29/2022] Open
Abstract
This study compared the ability of pulsed-field gel electrophoresis (PFGE), flaA small variable region (SVR) sequencing, analysis of the clustered regularly interspaced short palindromic repeats locus by high resolution melting analysis (CRISPR-HRMA), and multilocus sequence typing (MLST) for typing 111 Campylobacter jejuni strains isolated from diverse sources during 20 years in Brazil. For this, we used previous results obtained by PFGE and flaA-SVR sequencing from our research group and performed CRISPR-HRMA and MLST typing for the first time. Furthermore, the discrimination index (DI) of each method was accessed. The DI for PFGE, flaA-SVR sequencing, CRISPR-HRMA, and MLST was 0.980, 0.932, 0.868, and 0.931, respectively. By PFGE and flaA-SVR sequencing, some strains from clinical and non-clinical sources and from humans and animals presented ≥ 80% similarity. Similarly, some strains from different origins presented the same ST and CRISPR-HRMA types. In conclusion, despite the different DI values, all assays provided the same epidemiological information suggesting that a potential transmission may have occurred between C. jejuni from clinical and non-clinical sources and from animals and humans in Brazil. Furthermore it was demonstrated the suitability of PFGE that should be used preferably together with MLST and/or flaA-SVR sequencing for typing C. jejuni strains.
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Affiliation(s)
- Miliane Rodrigues Frazão
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, FCFRP-USP, Av. do Café, s/n°- Campus Universitário USP, Ribeirão Preto, SP 14040-903 Brazil
| | - Roberto Antonio de Souza
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, FCFRP-USP, Av. do Café, s/n°- Campus Universitário USP, Ribeirão Preto, SP 14040-903 Brazil
| | | | - Sheila da Silva Duque
- Fundação Oswaldo Cruz (Fiocruz), Instituto Oswaldo Cruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ 21040-900 Brazil
| | - Guojie Cao
- Division of Microbiology, Office of Regular Science, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, 5001 Campus Drive, College Park, MD 20740 USA
| | - Marc William Allard
- Division of Microbiology, Office of Regular Science, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, 5001 Campus Drive, College Park, MD 20740 USA
| | - Juliana Pfrimer Falcão
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, FCFRP-USP, Av. do Café, s/n°- Campus Universitário USP, Ribeirão Preto, SP 14040-903 Brazil
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Epping L, Golz JC, Knüver MT, Huber C, Thürmer A, Wieler LH, Stingl K, Semmler T. Comparison of different technologies for the decipherment of the whole genome sequence of Campylobacter jejuni BfR-CA-14430. Gut Pathog 2019; 11:59. [PMID: 31890037 PMCID: PMC6913002 DOI: 10.1186/s13099-019-0340-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 12/05/2019] [Indexed: 01/31/2023] Open
Abstract
Background Campylobacter jejuni is a zoonotic pathogen that infects the human gut through the food chain mainly by consumption of undercooked chicken meat, raw chicken cross-contaminated ready-to-eat food or by raw milk. In the last decades, C. jejuni has increasingly become the most common bacterial cause for food-born infections in high income countries, costing public health systems billions of euros each year. Currently, different whole genome sequencing techniques such as short-read bridge amplification and long-read single molecule real-time sequencing techniques are applied for in-depth analysis of bacterial species, in particular, Illumina MiSeq, PacBio and MinION. Results In this study, we analyzed a recently isolated C. jejuni strain from chicken meat by short- and long-read data from Illumina, PacBio and MinION sequencing technologies. For comparability, this strain is used in the German PAC-CAMPY research consortium in several studies, including phenotypic analysis of biofilm formation, natural transformation and in vivo colonization models. The complete assembled genome sequence most likely consists of a chromosome of 1,645,980 bp covering 1665 coding sequences as well as a plasmid sequence with 41,772 bp that encodes for 46 genes. Multilocus sequence typing revealed that the strain belongs to the clonal complex CC-21 (ST-44) which is known to be involved in C. jejuni human infections, including outbreaks. Furthermore, we discovered resistance determinants and a point mutation in the DNA gyrase (gyrA) that render the bacterium resistant against ampicillin, tetracycline and (fluoro-)quinolones. Conclusion The comparison of Illumina MiSeq, PacBio and MinION sequencing and analyses with different assembly tools enabled us to reconstruct a complete chromosome as well as a circular plasmid sequence of the C. jejuni strain BfR-CA-14430. Illumina short-read sequencing in combination with either PacBio or MinION can substantially improve the quality of the complete chromosome and epichromosomal elements on the level of mismatches and insertions/deletions, depending on the assembly program used.
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Affiliation(s)
- Lennard Epping
- 1NG1-Microbial Genomics, Robert Koch Institute, Nordufer 20, 13353 Berlin, Germany
| | - Julia C Golz
- 2National Reference Laboratory for Campylobacter, Department of Biological Safety, Federal Institute for Risk Assessment, Berlin, Germany
| | - Marie-Theres Knüver
- 2National Reference Laboratory for Campylobacter, Department of Biological Safety, Federal Institute for Risk Assessment, Berlin, Germany
| | - Charlotte Huber
- 3Advanced Light and Electron Microscopy, Robert Koch Institute, Berlin, Germany
| | - Andrea Thürmer
- 4Methodology and Research Infrastructure, Robert Koch Institute, Berlin, Germany
| | - Lothar H Wieler
- 4Methodology and Research Infrastructure, Robert Koch Institute, Berlin, Germany
| | - Kerstin Stingl
- 2National Reference Laboratory for Campylobacter, Department of Biological Safety, Federal Institute for Risk Assessment, Berlin, Germany
| | - Torsten Semmler
- 1NG1-Microbial Genomics, Robert Koch Institute, Nordufer 20, 13353 Berlin, Germany
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Ikeda K, Manabe Y, Fujiwara S, Omote Y, Narai H, Abe K. Campylobacter fetus Meningitis and Pyogenic Spondylodiscitis in a Healthy Young Woman. Case Rep Neurol 2019; 11:299-303. [PMID: 31824284 DOI: 10.1159/000503814] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 09/29/2019] [Indexed: 11/19/2022] Open
Abstract
We report a rare case of Campylobacter fetus meningitis and pyogenic spondylodiscitis in a healthy young woman. A 35-year-old woman without significant medical history presented with fever, headache, and low back pain. C. fetus was detected from the blood culture. Cerebrospinal fluid analysis showed bacterial meningitis 2 days after onset. Although initial magnetic resonance imaging (MRI) did not reveal abnormal findings, repeated MRI showed a low-signal-intensity lesion on T1-weighted image (T1WI) and a high-signal-intensity lesion on T2WI between the L5 and S1 vertebral bodies 11 days after onset. The mode of infection was considered to be the consumption of raw chicken meat. After antibiotic treatment with 12 g/day ampicillin following 6 g/day meropenem, she was discharged 51 days after onset. As the inflammatory signs on MRI improved, oral antibiotic therapy was discontinued 85 days after onset. Although the initial MRI showed no abnormal findings, repeat MRI should be performed for patients who have persistent low back pain and fever.
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Affiliation(s)
- Kenta Ikeda
- Department of Neurology, National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Yasuhiro Manabe
- Department of Neurology, National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Shunya Fujiwara
- Department of Neurology, National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Yoshio Omote
- Department of Neurology, National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Hisashi Narai
- Department of Neurology, National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Koji Abe
- Department of Neurology, Graduate School of Medicine and Dentistry, Okayama University, Okayama, Japan
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Banowary B, Dang VT, Sarker S, Connolly JH, Chenu J, Groves P, Raidal S, Ghorashi SA. Evaluation of Two Multiplex PCR-High-Resolution Melt Curve Analysis Methods for Differentiation of Campylobacter jejuni and Campylobacter coli Intraspecies. Avian Dis 2019; 62:86-93. [PMID: 29620472 DOI: 10.1637/11739-080417-reg.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Campylobacter infection is a common cause of bacterial gastroenteritis in humans and remains a significant global public health issue. The capability of two multiplex PCR (mPCR)-high-resolution melt (HRM) curve analysis methods (i.e., mPCR1-HRM and mPCR2-HRM) to detect and differentiate 24 poultry isolates and three reference strains of Campylobacter jejuni and Campylobacter coli was investigated. Campylobacter jejuni and C. coli were successfully differentiated in both assays, but the differentiation power of mPCR2-HRM targeting the cadF gene was found superior to that of mPCR1-HRM targeting the gpsA gene or a hypothetical protein gene. However, higher intraspecies variation within C. coli and C. jejuni isolates was detected in mPCR1-HRM when compared with mPCR2-HRM. Both assays were rapid and required minimum interpretation skills for discrimination between and within Campylobacter species when using HRM curve analysis software.
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Affiliation(s)
- Banya Banowary
- A School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia 2678
| | - Van Tuan Dang
- A School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia 2678
| | - Subir Sarker
- A School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia 2678.,C School of Life Sciences, La Trobe University, Melbourne, Victoria, Australia 3086
| | - Joanne H Connolly
- A School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia 2678.,B Graham Centre for Agricultural Innovation, New South Wales Department of Primary Industries and Charles Sturt University, Wagga Wagga, New South Wales, Australia 2678
| | - Jeremy Chenu
- D Birling Avian Laboratories, Bringelly, New South Wales, Australia 2556
| | - Peter Groves
- E University of Sydney, Sydney, New South Wales, Australia 2006
| | - Shane Raidal
- A School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia 2678.,B Graham Centre for Agricultural Innovation, New South Wales Department of Primary Industries and Charles Sturt University, Wagga Wagga, New South Wales, Australia 2678
| | - Seyed Ali Ghorashi
- A School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia 2678.,B Graham Centre for Agricultural Innovation, New South Wales Department of Primary Industries and Charles Sturt University, Wagga Wagga, New South Wales, Australia 2678
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23
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Manfreda G, De Cesare A. Campylobacter and Salmonella in poultry and poultry products: hows and whys of molecular typing. WORLD POULTRY SCI J 2019. [DOI: 10.1079/wps200448] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- G. Manfreda
- Department of Food Science, Alma Mater Studiorum – University of Bologna, Via S. Giacomo 9, 40126 Bologna, Italy
| | - A. De Cesare
- Department of Food Science, Alma Mater Studiorum – University of Bologna, Via S. Giacomo 9, 40126 Bologna, Italy
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24
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Campylobacter heat resistance - past, current status and future prospect for New Zealand and beyond. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s0043933915000100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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25
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Snelling W, Moore J, Dooley J. The colonization of broilers with Campylobacter. WORLD POULTRY SCI J 2019. [DOI: 10.1079/wps200577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- W.J. Snelling
- School of Biomedical Sciences, University of Ulster, Coleraine, Co., Londonderry, Northern Ireland, BT52 1SA
| | - J.E. Moore
- School of Biomedical Sciences, University of Ulster, Coleraine, Co., Londonderry, Northern Ireland, BT52 1SA
| | - J.S.G. Dooley
- School of Biomedical Sciences, University of Ulster, Coleraine, Co., Londonderry, Northern Ireland, BT52 1SA
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Villegas-Plazas M, Wos-Oxley ML, Sanchez JA, Pieper DH, Thomas OP, Junca H. Variations in Microbial Diversity and Metabolite Profiles of the Tropical Marine Sponge Xestospongia muta with Season and Depth. MICROBIAL ECOLOGY 2019; 78:243-256. [PMID: 30413836 DOI: 10.1007/s00248-018-1285-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 10/30/2018] [Indexed: 06/08/2023]
Abstract
Xestospongia muta is among the most emblematic sponge species inhabiting coral reefs of the Caribbean Sea. Besides being the largest sponge species growing in the Caribbean, it is also known to produce secondary metabolites. This study aimed to assess the effect of depth and season on the symbiotic bacterial dynamics and major metabolite profiles of specimens of X. muta thriving in a tropical marine biome (Portobelo Bay, Panamá), which allow us to determine whether variability patterns are similar to those reported for subtropical latitudes. The bacterial assemblages were characterized using Illumina deep-sequencing and metabolomic profiles using UHPLC-DAD-ELSD from five depths (ranging 9-28 m) across two seasons (spring and autumn). Diverse symbiotic communities, representing 24 phyla with a predominance of Proteobacteria and Chloroflexi, were found. Although several thousands of OTUs were determined, most of them belong to the rare biosphere and only 23 to a core community. There was a significant difference between the structure of the microbial communities in respect to season (autumn to spring), with a further significant difference between depths only in autumn. This was partially mirrored in the metabolome profile, where the overall metabolite composition did not differ between seasons, but a significant depth gradient was observed in autumn. At the phyla level, Cyanobacteria, Firmicutes, Actinobacteria, and Spirochaete showed a mild-moderate correlation with the metabolome profile. The metabolomic profiles were mainly characterized by known brominated polyunsaturated fatty acids. This work presents findings about the composition and dynamics of the microbial assemblages of X. muta expanding and confirming current knowledge about its remarkable diversity and geographic variability as observed in this tropical marine biome.
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Affiliation(s)
- Marcela Villegas-Plazas
- RG Microbial Ecology: Metabolism, Genomics & Evolution, Div Ecogenomics & Holobionts, Microbiomas Foundation, LT11A, Chía, 250008, Colombia
| | - Melissa L Wos-Oxley
- Microbial Interactions and Processes Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
- Honorary Research Associate, South Australian Museum, Adelaide, Australia
| | - Juan A Sanchez
- Laboratorio de Biología Molecular Marina (BIOMMAR), Departmento de Ciencias Biológicas, Universidad de los Andes, Bogotá, Colombia
| | - Dietmar H Pieper
- Microbial Interactions and Processes Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, Galway, H91 TK33, Ireland
| | - Howard Junca
- RG Microbial Ecology: Metabolism, Genomics & Evolution, Div Ecogenomics & Holobionts, Microbiomas Foundation, LT11A, Chía, 250008, Colombia.
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Divsalar G, Kaboosi H, Khoshbakht R, Shirzad-Aski H, Ghadikolaii FP. Antimicrobial resistances, and molecular typing of Campylobacter jejuni isolates, separated from food-producing animals and diarrhea patients in Iran. Comp Immunol Microbiol Infect Dis 2019; 65:194-200. [PMID: 31300113 DOI: 10.1016/j.cimid.2019.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 05/26/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023]
Abstract
The aims of this study were to regain new epidemiology information about frequency, drug resistance rates, and typing of Campylobacter jejuni (C. jejuni) isolates, obtained from some poultry and cattle farms, slaughterhouses, and people with diarrhea. In this regard, Minimal Inhibitory Concentration (MIC) of several antibiotics and the associated antibiotic resistance genes, including tetO, tetA, cmeB, and blaOXA-61 were evaluated. The isolates were also typed, using the Fla-RFLP method. Generally, between 233 food animal samples, 80 (34.33%) C. jejuni were isolated. Moreover, 20 out of 74 (27%) human specimens suspected to infectious diarrhea were C. jejuni positive. High frequencies of resistance to tetracycline (100%), ciprofloxacin (95%), and nalidixic acid (86%), and low frequencies of resistance to florfenicol (0%), erythromycin (5%), and gentamicin (8%) were observed. Furthermore, in the tetracycline-resistant isolates, the existences of tetO, tetA, and cmeB were 86%, 23%, and 48%, respectively. There was a significant correlation between the cluster types obtained from Fla-RFLP method and antibiotic resistance pattern. The results suggested that the genomic link between Campylobacter spp. should be always evaluated in each country to provide an insight about the Campylobacter spp., spread in the region, in order to implement the health-controlling programs efficiently.
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Affiliation(s)
- Golnaz Divsalar
- Department of Microbiology, Ayattollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Hami Kaboosi
- Department of Microbiology, Ayattollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Rahem Khoshbakht
- Department of Pathobiology, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran.
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29
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Wieczorek K, Wołkowicz T, Osek J. flaA-SVR Based Genetic Diversity of Multiresistant Campylobacter jejuni Isolated From Chickens and Humans. Front Microbiol 2019; 10:1176. [PMID: 31191494 PMCID: PMC6546949 DOI: 10.3389/fmicb.2019.01176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 05/08/2019] [Indexed: 11/13/2022] Open
Abstract
Campylobacter jejuni is one of the most common causes of human foodborne bacterial infections worldwide. The objective of this study was to assess the molecular diversity, using flaA sequencing, of 602 C. jejuni isolated from chicken food chain, i.e., chicken feces (n = 151), chicken carcasses (n = 150), chicken meat (n = 150), and from humans (n = 151) and to determine antimicrobial multiresistant profiles of the isolates as well as to analyze the relationship of the isolate genotypes with their antimicrobial resistance profiles and source of isolation. Multidrug resistant patterns were identified in 110 (18.3%) C. jejuni isolates recovered from all sources and most isolates were resistant to ciprofloxacin (CIP), nalidixic acid (NAL), streptomycin (STR), and tetracycline (TET) (92; 15.3%) or ciprofloxacin, streptomycin, and tetracycline (13; 2.2%). Only a few isolates were multiresistant to ciprofloxacin, nalidixic acid, tetracycline, and erythromycin (3; 0.5%) or ciprofloxacin, nalidixic acid, streptomycin, tetracycline, and erythromycin (2; 0.3%). A total of 79 flaA-SVR subtypes were identified, including 40 (50.6%) unique to the isolates' origins, with the most common sequence types 16, 54, 36, 34, and 287 which covered 56 (9.3%), 50 (8.3%), 48 (8.0%), 35 (5.8%), and 32 (5.3%) of C. jejuni isolates, respectively. It was found that 13 isolates had the novel flaA-SVR subtypes which were not present in the pubMLST database. These isolates were recovered from chicken feces (6 isolates), carcasses (2 isolates), meat (one isolate) and from humans (4 isolates). Multiresistant C. jejuni were classified into 26 different sequence subtypes. Among the most numerous multidrug resistant profile CIP+NAL+STR+TET 21 different flaA-SVR subtypes, with total of 92 isolates, were identified. Most of them were classified to 287 (18; 19.6% isolates), 100 (13; 14.1%), 34 (9; 9.8%), 208 (8; 8.7%), and 781 (8; 8.7%) molecular variants. Isolates resistant to CIP, STR and TET (13 isolates) were mainly from chicken feces (12 isolates) and classified into 5 flaA-SVR sequence types, with the most common 36 (8 isolates). The obtained results show a broad molecular diversity of multiresistant C. jejuni isolates and suggest chickens as a possible source of human Campylobacter infections in Poland.
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Affiliation(s)
- Kinga Wieczorek
- Department of Hygiene of Food of Animal Origin, National Veterinary Research Institute, Pulawy, Poland
| | - Tomasz Wołkowicz
- Department of Bacteriology and Biocontamination Control, National Institute of Public Health – National Institute of Hygiene, Warsaw, Poland
| | - Jacek Osek
- Department of Hygiene of Food of Animal Origin, National Veterinary Research Institute, Pulawy, Poland
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Melo RT, Grazziotin AL, Júnior ECV, Prado RR, Mendonça EP, Monteiro GP, Peres PABM, Rossi DA. Evolution of Campylobacter jejuni of poultry origin in Brazil. Food Microbiol 2019; 82:489-496. [PMID: 31027810 DOI: 10.1016/j.fm.2019.03.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 01/29/2019] [Accepted: 03/07/2019] [Indexed: 11/26/2022]
Abstract
Campylobacter jejuni is the most common pathogen associated with foodborne diseases. Persistent presence of this pathogen contaminating the environment in slaughterhouses and chicken products have been reported worldwide. Although many efforts have been employed for reducing C. jejuni contamination, few studies have been conducted to understand the dynamics of C. jejuni in slaughterhouses over time. In this study, we evaluated the virulence, antibiotic resistance and genetic diversity profiles of 99 C. jejuni isolated from chilled chicken carcasses collected in Brazilian slaughterhouses during two distinct periods (2011-2012 and 2015-2016). The virulence profile was evaluated for the presence of flaA, ciaB, cadF, pldA and cdtABC genes. Antibiotic resistance was evaluated for amoxicillin-clavulanic acid, gentamicin, erythromycin and tetracycline. Genetic diversity was assessed using RAPD-PCR. The prevalence of C. jejuni was significantly reduced in 2015-2016 as well the number of antibiotic (and multidrug) resistant isolates, except for tetracycline. However, isolates from 2015 to 2016 showed higher prevalence of multiple virulence genes and genetic diversity profile compared to isolates from 2011 to 2012. During the studied period, stricter regulations to control pathogens in poultry farms and slaughterhouses were implemented in Brazil, which may have contributed to the profile variation observed due to changes of selective pressures on bacterial populations.
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Affiliation(s)
- Roberta T Melo
- Laboratório de Epidemiologia Molecular, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Rua Ceara s/n, Bloco 2D, Sala 44, Bairro Umuarama, Uberlandia, MG, 38402-018, Brazil.
| | - Ana Laura Grazziotin
- Laboratório de Epidemiologia Molecular, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Rua Ceara s/n, Bloco 2D, Sala 44, Bairro Umuarama, Uberlandia, MG, 38402-018, Brazil
| | - Edson C Valadares Júnior
- Laboratório de Epidemiologia Molecular, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Rua Ceara s/n, Bloco 2D, Sala 44, Bairro Umuarama, Uberlandia, MG, 38402-018, Brazil
| | - Renata R Prado
- Laboratório de Epidemiologia Molecular, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Rua Ceara s/n, Bloco 2D, Sala 44, Bairro Umuarama, Uberlandia, MG, 38402-018, Brazil
| | - Eliane P Mendonça
- Laboratório de Biologia Molecular, Universidade de Uberaba, Av. Nenê Sabino 1801, Bairro Aeroporto, Uberaba, MG, 38055-500, Brazil
| | - Guilherme P Monteiro
- Laboratório de Epidemiologia Molecular, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Rua Ceara s/n, Bloco 2D, Sala 44, Bairro Umuarama, Uberlandia, MG, 38402-018, Brazil
| | - Phelipe A B M Peres
- Laboratório de Epidemiologia Molecular, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Rua Ceara s/n, Bloco 2D, Sala 44, Bairro Umuarama, Uberlandia, MG, 38402-018, Brazil
| | - Daise A Rossi
- Laboratório de Epidemiologia Molecular, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Rua Ceara s/n, Bloco 2D, Sala 44, Bairro Umuarama, Uberlandia, MG, 38402-018, Brazil
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Würfel SFR, da Silva WP, de Oliveira MG, Kleinubing NR, Lopes GV, Gandra EA, Dellagostin OA. Genetic diversity of Campylobacter jejuni and Campylobacter coli isolated from poultry meat products sold on the retail market in Southern Brazil. Poult Sci 2019; 98:932-939. [PMID: 30137619 DOI: 10.3382/ps/pey365] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 07/18/2018] [Indexed: 01/18/2023] Open
Abstract
Campylobacter is regarded as the most common bacterial cause of gastroenteritis throughout the world and most cases of human campylobacteriosis can be traced back to the consumption of poultry meat. In Brazil, few studies evaluated the genetic relatedness among Campylobacter isolates. The aim of this research was to evaluate the genetic diversity of Campylobacter spp. isolated from poultry meat products sold on the retail market in Southern Brazil. The presumptive identification of Campylobacter was performed using traditional microbiological analysis, followed by molecular confirmation by PCR. The genetic diversity of isolates was analyzed by pulsed-field gel electrophoresis (PFGE). Campylobacter spp. was isolated from 91.7% (33/36) of the samples, totaling 48 isolates. Campylobacter jejuni was the most prevalent species isolated (90.8%). PFGE data revealed 26 pulsotypes and 18 PFGE patterns composed of only 1 isolate. Campylobacter isolates exhibited high genetic diversity; however, some clones were recurrent in the poultry meat products sold on the retail market. As the south region of Brazil is an important producer and exporter of chicken meat, our results highlight the need to control this pathogen in the food chain in this area of the world to reduce the risks of exposing consumers to campylobacteriosis.
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Affiliation(s)
- S F R Würfel
- Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, 96010-900 Pelotas, RS, Brazil
| | - W P da Silva
- Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, 96010-900 Pelotas, RS, Brazil.,Departamento de Ciência e Tecnologia Agroindustrial, Universidade Federal de Pelotas, 96010-900 Pelotas, RS, Brazil
| | - M G de Oliveira
- Departamento de Ciência e Tecnologia Agroindustrial, Universidade Federal de Pelotas, 96010-900 Pelotas, RS, Brazil
| | - N R Kleinubing
- Departamento de Ciência e Tecnologia Agroindustrial, Universidade Federal de Pelotas, 96010-900 Pelotas, RS, Brazil
| | - G V Lopes
- Departamento de Ciência e Tecnologia Agroindustrial, Universidade Federal de Pelotas, 96010-900 Pelotas, RS, Brazil
| | - E A Gandra
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, 96010-900 Pelotas, RS, Brazil
| | - O A Dellagostin
- Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, 96010-900 Pelotas, RS, Brazil
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Ricke SC, Feye KM, Chaney WE, Shi Z, Pavlidis H, Yang Y. Developments in Rapid Detection Methods for the Detection of Foodborne Campylobacter in the United States. Front Microbiol 2019; 9:3280. [PMID: 30728816 PMCID: PMC6351486 DOI: 10.3389/fmicb.2018.03280] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/17/2018] [Indexed: 12/27/2022] Open
Abstract
The accurate and rapid detection of Campylobacter spp. is critical for optimal surveillance throughout poultry processing in the United States. The further development of highly specific and sensitive assays to detect Campylobacter in poultry matrices has tremendous utility and potential for aiding the reduction of foodborne illness. The introduction and development of molecular methods such as polymerase chain reaction (PCR) have enhanced the diagnostic capabilities of the food industry to identify the presence of foodborne pathogens throughout poultry production. Further innovations in various methodologies, such as immune-based typing and detection as well as high throughput analyses, will provide important epidemiological data such as the identification of unique or region-specific Campylobacter. Comparable to traditional microbiology and enrichment techniques, molecular techniques/methods have the potential to have improved sensitivity and specificity, as well as speed of data acquisition. This review will focus on the development and application of rapid molecular methods for identifying and quantifying Campylobacter in U.S. poultry and the emergence of novel methods that are faster and more precise than traditional microbiological techniques.
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Affiliation(s)
- Steven C. Ricke
- Department of Food Science, Center of Food Safety, University of Arkansas, Fayetteville, AR, United States
| | - Kristina M. Feye
- Department of Food Science, Center of Food Safety, University of Arkansas, Fayetteville, AR, United States
| | | | - Zhaohao Shi
- Department of Food Science, Center of Food Safety, University of Arkansas, Fayetteville, AR, United States
| | | | - Yichao Yang
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
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Awad A, Elkenany R, Sadat A, Ragab W, Elhadidy M. Multilocus Sequence Typing (MLST) of Campylobacter jejuni Isolated From Broiler Meat in Egypt. Pak J Biol Sci 2019; 22:574-579. [PMID: 31930855 DOI: 10.3923/pjbs.2019.574.579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND OBJECTIVES Infection with Campylobacter jejuni is one of the most common causes of bacterial gastroenteritis. Infections are mostly acquired due to consumption of raw or undercooked poultry. The aim of this pilot study is to determine the prevalence and the sequence types (STs) distribution of C. jejuni isolated from broiler meat in Egypt. MATERIALS AND METHODS A total of 190 broiler meat samples were collected from retail chicken shops located at Mansoura, Egypt and examined bacteriologically for the presence of Campylobacter spp. The biochemically identified Campylobacter isolates were confirmed by Multiplex PCR (m-PCR). In addition, multilocus sequencing typing (MLST) was used for genotyping of C. jejuni isolates. RESULTS Thirty two Campylobacter isolates divided into C. coli (25 isolates) and C. jejuni (7 isolates) were recovered. Multiplex PCR results found to be 100% in line with biochemical identification. Out of 7 C. jejuni isolates genotyped by MLST, 4 isolates were assigned to ST21, 2 isolates were assigned to ST48 and one isolate was assigned to ST464. CONCLUSION This study provides valuable information concerning the prevalence of thermophilic Campylobacter spp. and sequence types distribution of C. jejuni recovered from broiler meat for the first time in Egypt. The identified sequence types from this study were frequently reported in human illnesses. Thus, the present results highlight the importance of the retail broiler meat as a significant source for human Campylobacter infection.
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Zhang Q, Al-Ghalith GA, Kobayashi M, Segawa T, Maeda M, Okabe S, Knights D, Ishii S. High-Throughput flaA Short Variable Region Sequencing to Assess Campylobacter Diversity in Fecal Samples From Birds. Front Microbiol 2018; 9:2201. [PMID: 30319559 PMCID: PMC6167966 DOI: 10.3389/fmicb.2018.02201] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 08/28/2018] [Indexed: 01/18/2023] Open
Abstract
Current approach to identify sources of human pathogens is largely dependent on the cultivation and isolation of target bacteria. For rapid pathogen source identification, culture-independent strain typing method is necessary. In this study, we designed new primer set that broadly covers flaA short variable region (SVR) of various Campylobacter species, and applied the flaA SVR sequencing method to examine the diversity of Campylobacter spp. in geese fecal samples (n = 16) with and without bacteria cultivation. Twenty-three Campylobacter strains isolated from the 16 geese fecal samples were grouped similarly by conventional flaA restriction fragment length polymorphism (RFLP) method and by the flaA SVR sequencing method, but higher discriminant power was observed in the flaA SVR sequencing approach. For culture-independent flaA SVR sequencing analysis, we developed and optimized the sequence data analysis pipeline to identify as many genotypes as possible, while minimizing the detection of genotypes generated by sequencing errors. By using this pipeline, 51,629 high-quality flaA sequence reads were clustered into 16 operational taxonomic units (=genotypes) by using 98% sequence similarity and >50 sequence duplicates. Almost all flaA genotypes obtained by culture-dependent method were also identified by culture-independent flaA SVR MiSeq sequencing method. In addition, more flaA genotypes were identified probably due to high throughput nature of the MiSeq sequencing. These results suggest that the flaA SVR sequencing could be used to analyze the diversity of Campylobacter spp. without bacteria isolation. This method is promising to rapidly identify potential sources of Campylobacter pathogens.
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Affiliation(s)
- Qian Zhang
- BioTechnology Institute, University of Minnesota, St. Paul, MN, United States
| | - Gabriel A Al-Ghalith
- Bioinformatics and Computational Biology, University of Minnesota, Minneapolis, MN, United States
| | - Mayumi Kobayashi
- Division of Environmental Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
| | - Takahiro Segawa
- Center for Life Science Research, University of Yamanashi, Yamanashi, Japan.,National Institute of Polar Research, Tokyo, Japan
| | - Mitsuto Maeda
- Division of Environmental Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
| | - Satoshi Okabe
- Division of Environmental Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
| | - Dan Knights
- BioTechnology Institute, University of Minnesota, St. Paul, MN, United States.,Bioinformatics and Computational Biology, University of Minnesota, Minneapolis, MN, United States.,Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN, United States
| | - Satoshi Ishii
- BioTechnology Institute, University of Minnesota, St. Paul, MN, United States.,Division of Environmental Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan.,Department of Soil, Water, and Climate, University of Minnesota, St. Paul, MN, United States
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Comparative restriction enzyme mapping of Campylobacter jejuni isolates from turkeys and broilers based on flaA flagellar gene using HpyF3I endonuclease. Folia Microbiol (Praha) 2018; 64:189-195. [PMID: 30151662 DOI: 10.1007/s12223-018-0643-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 08/21/2018] [Indexed: 10/28/2022]
Abstract
Turkeys and broilers have been identified as important reservoirs for Campylobacter jejuni which is of public health significance. The evaluation of the genotypes among C. jejuni strains within different reservoirs is critical for our understanding of the epidemiology of this infectious agent. The present study aimed to compare the genetic diversity and differences of C. jejuni isolates from turkeys and broilers using flagellin PCR-RFLP typing (flaA typing) technique, in terms of the ease of use and discriminatory power. Sixty C. jejuni isolates were detected biochemically and confirmed by duplex-PCR from turkeys and broilers (30 strains from each bird species). Then, a flaA gene fragment (1725 bp) of C. jejuni isolates was amplified and amplicons were digested with HpyF3I enzyme. Restriction analysis by HpyF3I gave four different flaA patterns (H1, H2, H3, H4) among all tested C. jejuni isolates. In broiler isolates, all four patterns were observed but in turkey isolates, only H2 and H4 patterns were present. The results clearly demonstrated that distribution of the flaA typing patterns differed depending on the host species (broiler/turkey). H1 and H3 flaA types are more prevalent in broiler than turkey isolates, while H2 type is significantly more prevalent within isolates from turkey (p < 0.05). The flaA typing technique by digestion with HpyF3I enzyme can almost give us a clue to the source of infection in local outbreaks.
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36
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Gomes CN, Passaglia J, Vilela FP, Pereira da Silva FM, Duque SS, Falcão JP. High survival rates of Campylobacter coli under different stress conditions suggest that more rigorous food control measures might be needed in Brazil. Food Microbiol 2018. [DOI: 10.1016/j.fm.2018.02.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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37
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Taşkale Karatuğ N, Yüksel FN, Akçelik N, Akçelik M. Genetic diversity of food originated Salmonella isolates. BIOTECHNOL BIOTEC EQ 2018. [DOI: 10.1080/13102818.2018.1451779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Affiliation(s)
| | | | - Nefise Akçelik
- Institute of Biotechnology, Central Laboratory, Ankara University, Turkey
| | - Mustafa Akçelik
- Department of Biology, Faculty of Science, Ankara University, Turkey
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Seinige D, Von Altrock A, Kehrenberg C. Genetic diversity and antibiotic susceptibility of Staphylococcus aureus isolates from wild boars. Comp Immunol Microbiol Infect Dis 2017; 54:7-12. [PMID: 28916003 DOI: 10.1016/j.cimid.2017.07.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 06/30/2017] [Accepted: 07/04/2017] [Indexed: 01/22/2023]
Abstract
We here report the occurrence of S. aureus in wild boars and characterize isolates genotypically and phenotypically in order to get knowledge about the occurrence of clonal lineages and genotypes in free-living wild animals. Forty-one S. aureus isolates obtained from 111 wild boars hunted in Lower Saxony, Germany, were investigated and compared to human and livestock isolates. The S. aureus belonged to multilocus sequence types ST1, ST7, ST30, ST133, ST425, ST804, ST890 and to the new ST3237, ST3238, ST3255 and ST3369. The livestock associated CC398-MRSA lineage, however, was not found. In addition to well-known spa types, the new types t14999, t15000, t15001 and t15002 were detected. Macrorestriction analysis revealed a variety of different SmaI fragment patterns. Most isolates were susceptible to all antimicrobials tested, including methicillin, and resistance was detected only to ampicillin, penicillin and erythromycin. PCR analysis confirmed the presence of staphylococcal enterotoxin genes (seh) in all t127-ST1 isolates. A high degree of genetic diversity was detected with many spa types and clonal lineages previously reported in humans and livestock animals.
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Affiliation(s)
- D Seinige
- Institute for Food Quality and Food Safety, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - A Von Altrock
- Clinic for Swine and Small Ruminants, Forensic Medicine and Ambulatory Services, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - C Kehrenberg
- Institute for Food Quality and Food Safety, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany.
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39
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Zbrun MV, Romero-Scharpen A, Olivero C, Zimmermann JA, Rossler E, Soto LP, Astesana DM, Blajman JE, Berisvil A, Frizzo LS, Signorini ML. Genetic diversity of thermotolerant Campylobacter spp. isolates from different stages of the poultry meat supply chain in Argentina. Rev Argent Microbiol 2017; 49:235-241. [PMID: 28712509 DOI: 10.1016/j.ram.2017.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 02/22/2017] [Accepted: 03/03/2017] [Indexed: 12/01/2022] Open
Abstract
The objective of this study was to investigate a clonal relationship among thermotolerant Campylobacter spp. isolates from different stages of the poultry meat supply chain in Argentina. A total of 128 thermotolerant Campylobacter spp. (89 C. jejuni and 39 C. coli) isolates from six poultry meat chains were examined. These isolates were from: a) hens from breeder flocks, b) chickens on the farm (at ages 1 wk and 5 wk), c) chicken carcasses in the slaughterhouse, and d) chicken carcasses in the retail market. Chickens sampled along each food chain were from the same batch. Campylobacter spp. isolates were analyzed using pulsed-field gel electrophoresis to compare different profiles according to the source. Clustering of C. jejuni isolates resulted in 17 profiles, with four predominant genotypes and many small profiles with just a few isolates or unique patterns, showing a very high degree of heterogeneity among the C. jejuni isolates. Some clusters included isolates from different stages within the same chain, which would indicate a spread of strains along the same poultry meat chain. Moreover, twenty-two strains of C. coli clustered in seven groups and the remaining 17 isolates exhibited unique profiles. Evidence for transmission of thermotolerant Campylobacter spp. through the food chain and cross contamination in the slaughterhouses were obtained. This collective evidence should be considered as the scientific basis to implement risk management measures to protect the public health.
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Affiliation(s)
- María V Zbrun
- Laboratory of Food Analysis, Institute of Veterinary Science (ICiVet Litoral), National University of the Littoral, National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina; Department of Public Health, Faculty of Veterinary Science-National University of the Littoral, Esperanza, Province of Santa Fe, Argentina
| | - Analía Romero-Scharpen
- Department of Public Health, Faculty of Veterinary Science-National University of the Littoral, Esperanza, Province of Santa Fe, Argentina
| | - Carolina Olivero
- Laboratory of Food Analysis, Institute of Veterinary Science (ICiVet Litoral), National University of the Littoral, National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina
| | - Jorge A Zimmermann
- Department of Public Health, Faculty of Veterinary Science-National University of the Littoral, Esperanza, Province of Santa Fe, Argentina
| | - Eugenia Rossler
- Department of Public Health, Faculty of Veterinary Science-National University of the Littoral, Esperanza, Province of Santa Fe, Argentina
| | - Lorena P Soto
- Laboratory of Food Analysis, Institute of Veterinary Science (ICiVet Litoral), National University of the Littoral, National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina; Department of Public Health, Faculty of Veterinary Science-National University of the Littoral, Esperanza, Province of Santa Fe, Argentina
| | - Diego M Astesana
- Department of Public Health, Faculty of Veterinary Science-National University of the Littoral, Esperanza, Province of Santa Fe, Argentina
| | - Jesica E Blajman
- Department of Public Health, Faculty of Veterinary Science-National University of the Littoral, Esperanza, Province of Santa Fe, Argentina
| | - Ayelén Berisvil
- Department of Public Health, Faculty of Veterinary Science-National University of the Littoral, Esperanza, Province of Santa Fe, Argentina
| | - Laureano S Frizzo
- Laboratory of Food Analysis, Institute of Veterinary Science (ICiVet Litoral), National University of the Littoral, National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina; Department of Public Health, Faculty of Veterinary Science-National University of the Littoral, Esperanza, Province of Santa Fe, Argentina.
| | - Marcelo L Signorini
- Laboratory of Food Analysis, Institute of Veterinary Science (ICiVet Litoral), National University of the Littoral, National Council of Scientific and Technical Research (UNL/CONICET), Esperanza, Province of Santa Fe, Argentina; National Council of Scientific and Technical Research (CONICET), National Institute of Agricultural Technology (INTA), EEA Rafaela, Rafaela, Province of Santa Fe, Argentina
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40
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Vinueza-Burgos C, Wautier M, Martiny D, Cisneros M, Van Damme I, De Zutter L. Prevalence, antimicrobial resistance and genetic diversity of Campylobacter coli and Campylobacter jejuni in Ecuadorian broilers at slaughter age. Poult Sci 2017; 96:2366-2374. [PMID: 28339716 PMCID: PMC5850218 DOI: 10.3382/ps/pew487] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 12/20/2016] [Indexed: 01/28/2023] Open
Abstract
Thermotolerant Campylobacter spp. are a major cause of foodborne gastrointestinal infections worldwide. The linkage of human campylobacteriosis and poultry has been widely described. In this study we aimed to investigate the prevalence, antimicrobial resistance and genetic diversity of C. coli and C. jejuni in broilers from Ecuador. Caecal content from 379 randomly selected broiler batches originating from 115 farms were collected from 6 slaughterhouses located in the province of Pichincha during 1 year. Microbiological isolation was performed by direct plating on mCCDA agar. Identification of Campylobacter species was done by PCR. Minimum inhibitory concentration (MIC) values for gentamicin, ciprofloxacin, nalidixic acid, tetracycline, streptomycin, and erythromycin were obtained. Genetic variation was assessed by RFLP-flaA typing and Multilocus Sequence Typing (MLST) of selected isolates. Prevalence at batch level was 64.1%. Of the positive batches 68.7% were positive for C. coli, 18.9% for C. jejuni, and 12.4% for C. coli and C. jejuni. Resistance rates above 67% were shown for tetracycline, ciprofloxacin, and nalidixic acid. The resistance pattern tetracycline, ciprofloxin, and nalidixic acid was the dominant one in both Campylobacter species. RFLP-flaA typing analysis showed that C. coli and C. jejuni strains belonged to 38 and 26 profiles respectively. On the other hand MLST typing revealed that C. coli except one strain belonged to CC-828, while C. jejuni except 2 strains belonged to 12 assigned clonal complexes (CCs). Furthermore 4 new sequence types (STs) for both species were described, whereby 2 new STs for C. coli were based on new allele sequences. Further research is necessary to estimate the impact of the slaughter of Campylobacter positive broiler batches on the contamination level of carcasses in slaughterhouses and at retail in Ecuador.
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Affiliation(s)
| | - Magali Wautier
- Center for Molecular Diagnosis, LHUB-ULB, Brussels, Belgium
| | - Delphine Martiny
- National Reference Center for Campylobacter, CHU Saint-Pierre, Brussels, Belgium
- Department of Immunology and Microbiology, Université Libre de Bruxelles, Brussels, Belgium
| | - Marco Cisneros
- Facultad de Medicina Veterinaria y Zootecnia. Universidad Central del Ecuador, Quito, Ecuador
| | - Inge Van Damme
- Department of Veterinary Public Health and Food Safety, Faculty of Veterinary. Ghent University, Merelbeke, Belgium
| | - Lieven De Zutter
- Department of Veterinary Public Health and Food Safety, Faculty of Veterinary. Ghent University, Merelbeke, Belgium
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41
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Mechergui A, Achour W, Ben Hassen A. Genotyping of commensal Neisseria spp strains by pulsed-field gel electrophoresis and 16S rRNA gene sequencing. J Clin Lab Anal 2017; 32. [PMID: 28374932 DOI: 10.1002/jcla.22208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 02/22/2017] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND We investigated the diversity of the primary sequences of the 16S rRNA genes among 46 commensal Neisseria strains and evaluated the use of this approach as a molecular typing tool in comparison with PFGE analysis. METHODS Identification to the genus was done using conventional methods and API NH (bio-Mérieux® ). Identification to species level was based on 16S rRNA gene sequencing. PFGE analysis was done using SpeI. RESULTS Fourteen, two, three and fourteen 16S rRNA sequence types were found among twenty Neisseria flavescens, two Neisseria sicca, five Neisseria macacae and nineteen Neisseria mucosa clinical isolates. Forty-three different PFGE patterns were found among the tested strains. CONCLUSION We demonstrated a high diversity among 16S rRNA genes which was reflected by PFGE analysis.
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Affiliation(s)
- Arij Mechergui
- The National Bone Marrow Transplant Centre, Tunis, Tunisia.,Faculty of Medicine of Tunis, UR12ES02, Tunis, Tunisia
| | - Wafa Achour
- The National Bone Marrow Transplant Centre, Tunis, Tunisia.,Faculty of Medicine of Tunis, UR12ES02, Tunis, Tunisia
| | - Assia Ben Hassen
- The National Bone Marrow Transplant Centre, Tunis, Tunisia.,Faculty of Medicine of Tunis, UR12ES02, Tunis, Tunisia
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Frazão MR, Medeiros MIC, Duque SDS, Falcão JP. Pathogenic potential and genotypic diversity of Campylobacter jejuni: a neglected food-borne pathogen in Brazil. J Med Microbiol 2017; 66:350-359. [PMID: 28317494 DOI: 10.1099/jmm.0.000424] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Purpose and methodology.Campylobacter jejuni is a major zoonotic pathogen that causes food-borne gastroenteritis worldwide. However, there are only a few studies available that have molecularly characterized C. jejuni strains isolated in Brazil. The aim of this study was to genotype 111 C. jejuni strains isolated from sick humans (43), monkey faeces (19), chicken faeces (14), chicken meat (33) and sewage (2) between 1996 and 2016 in Brazil using flaA-SVR (short variable region) sequencing and PFGE. Furthermore, the presence of 16 virulence genes was analysed by PCR. RESULTS Using PFGE and flaA-SVR sequencing, the 111 C. jejuni strains studied were grouped into three and two clusters, respectively, and some strains of different origin presented a similarity of ≥80 %. In total, 35 flaA-SVR alleles were detected. Alleles gt45, gt49 and gt57 were the most prevalent, in contrast with those frequently described in the PubMLST database. All 111 C. jejuni strains contained the genes flaA, flhA, cadF, docA, cdtA, cdtB, cdtC, iamA, ciaB, sodB, dnaJ, pldA, racR and csrA. The wlaN gene was detected in 11 strains (9.9 %), and the virB11 in just one strain (0.9 %). CONCLUSIONS In conclusion, the pathogenic potential of the C. jejuni strains studied was highlighted by the high frequency of the majority of the virulence genes searched. The flaA-SVR sequencing and PFGE results showed that some of the strains studied presented a high genotypic similarity, suggesting potential for transmission between animal sources and humans in this country. Altogether, the results characterize further C. jejuni isolates from Brazil, an important producer and exporter of chicken meat.
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Affiliation(s)
- Miliane Rodrigues Frazão
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | | | | | - Juliana Pfrimer Falcão
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
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43
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Ohishi T, Aoki K, Ishii Y, Usui M, Tamura Y, Kawanishi M, Ohnishi K, Tateda K. Molecular epidemiological analysis of human- and chicken-derived isolates of Campylobacter jejuni in Japan using next-generation sequencing. J Infect Chemother 2017; 23:165-172. [PMID: 28087306 DOI: 10.1016/j.jiac.2016.11.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 11/29/2016] [Accepted: 11/29/2016] [Indexed: 01/24/2023]
Abstract
In this research, we analyzed the main sequence types (ST) and ST complexes of human- and chicken-derived isolates of Campylobacter jejuni in Japan by using multilocus sequence typing (MLST). We also analyzed lipooligosaccharide biosynthesis locus classes (LOS locus classes) and the numbers of isolates carrying genes coding resistance factors against various antibiotics, and observed their relationships. ST-21 complex was the main ST complex in isolates from humans (n = 38) and chickens (n = 25). None of the isolates showed resistance to imipenem, chloramphenicol, or erythromycin. Few isolates were resistant to ampicillin and streptomycin (1.3%-15%), whereas many showed resistance to tetracycline, ciprofloxacin, and nalidixic acid (38%-48%). Among the ST-21 complex isolates, ST4526 was detected at a very high rate. Those isolates showed resistance to tetracycline and ciprofloxacin, and were susceptible to ampicillin. Among the chicken-derived isolates, 37 of the 38 isolates that showed resistance to ciprofloxacin and nalidixic acid had threonine to isoleucine amino acid substitution in GyrA at codon 86 (T86I). Among the human-derived isolates, 17 of the 47 isolates that showed resistance to ciprofloxacin and 16 of the 48 isolates that showed resistance to nalidixic acid did not have T86I amino acid mutations in GyrA. The human-derived ST-21 complex isolates were classified into LOS locus classes A, B, C, D, and E. The chicken-derived ST-21 complex isolates, with the exception of one isolate, were all classified into LOS locus classes C and D. Among chicken-derived isolates, the most prevalent was ST51 (ST-443 complex) (10 isolates) and all of those were LOS locus class E.
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Affiliation(s)
- Takayuki Ohishi
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan; Department of Infection Control and Prevention, Osaki Citizen Hospital, Miyagi, Japan
| | - Kotaro Aoki
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
| | - Yoshikazu Ishii
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan.
| | - Masaru Usui
- Laboratory of Food Microbiology and Food Safety, Division of Health and Environmental Science School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - Yutaka Tamura
- Laboratory of Food Microbiology and Food Safety, Division of Health and Environmental Science School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - Michiko Kawanishi
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, Tokyo, Japan
| | - Kenji Ohnishi
- Department of Infectious Diseases, Tokyo Metropolitan Bokutoh General Hospital, Tokyo, Japan
| | - Kazuhiro Tateda
- Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan
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Ranjbar R, Tabatabaee A, Behzadi P, Kheiri R. Enterobacterial Repetitive Intergenic Consensus Polymerase Chain Reaction (ERIC-PCR) Genotyping of Escherichia coli Strains Isolated from Different Animal Stool Specimens. IRANIAN JOURNAL OF PATHOLOGY 2017; 12:25-34. [PMID: 29760750 PMCID: PMC5938721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/29/2016] [Indexed: 12/02/2022]
Abstract
BACKGROUND Escherichia coli is a commensal-pathogenic organism, which includes a wide range of strains. Despite several advanced molecular-genomic technologies for detecting and identifying different strains of E. coli, Enterobacterial Repetitive Intergenic Consensus Polymerase Chain Reaction (ERIC-PCR) technique is a quick, sharp and cost effective fingerprint method. The major purpose of the present study was to determine the distribution of ERICs within E. coli strains isolated from different healthy animal stool specimens including hens, sheep, and cows, as an appropriate and quick molecular-genomic tool. METHODS The animal stool samples were obtained during 1 year (October 2012 to October 2013), from animal husbandries around Tehran and Alborz provinces, Iran. After screening processes, the E. coli bacteria were isolated and cultured via standard microbiological methods. The DNA molecules of E. coli bacteria were harvested and Enterobacterial Repetitive Intergenic Consensus Polymerase Chain Reaction (ERIC-PCR) was applied for bacterial molecular genotyping. The ERIC-PCR products were run on 1% gel electrophoresis. The final images regarding gel electrophoresis banding patterns were used for dendrogram generation via the GelClust software. RESULTS Of 120 isolated samples, 115 different strains were recognized as E. coli. The fingerprint patterns involved 380 to 3280 bp bands. The predominant bands included 2900 bp, 1200 bp, and 1200 bp in stool samples of hens, sheep, and cows, respectively. The highest frequencies and diversities were seen among E. coli strains isolated from hens and sheep stool samples. CONCLUSION The DNA profiles were clearly detectable via specific fingerprint patterns. The ERIC-PCR seemed to be a good approach for molecular typing of E. coli strains isolated from different animal sources.
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Affiliation(s)
- Reza Ranjbar
- Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran,Corresponding Information: Dr. Reza Ranjbar. Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran. Tel: +982188039883
| | - Afsar Tabatabaee
- Dept. of Microbiology, Zanjan Branch, Islamic Azad University, Zanjan, Iran
| | - Payam Behzadi
- Dept. of Microbiology, College of Basic Sciences, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran
| | - Rohollah Kheiri
- Water Quality Control Office, Alborz Province Water and Wastewater Company, Karaj, Iran
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Studying the prevalence of Campylobacter jejuni in adults with gastroenteritis from northwest of Iran. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2016. [DOI: 10.1016/s2222-1808(16)61164-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Misawa N, Kawashima K, Kondo F, Ban Mishu Allos, Blaser MJ. DNA diversity of the wla gene cluster among serotype HS:19 and non-HS:19 Campylobacter jejuni strains. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/09680519010070050201] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Campylobacter jejuni infection is an important trigger of Guillain-Barré syndrome (GBS), and serotype HS:19 strains are over-represented among GBS-associated isolates. Structures in C. jejuni lipooligosaccharide (LOS) resemble human gangliosides, suggesting that molecular mimicry could be important in triggering the neural injury. We assessed the genetic diversity among 36 C. jejuni serotype HS:19 and non-HS:19 strains by analysis of PCR-based restriction fragment length polymorphism (RFLP) patterns of 12 LOS biosynthesis-related genes ( wla cluster). PCR amplification revealed that the size, order, and direction of each wla gene was identical among all strains tested. However, an additional ORF, located between wlaI and wlaK, was detected in 28 of the 36 isolates examined, and nucleotide sequence analysis revealed that the gene was identical to orfE in C. jejuni strain NCTC 11168. An inverted repeat motif was found downstream of the wlaI stop codon and upstream of the orfE stop codon, an organization allowing pairing of repeated sequences that could lead to deletion of the internal segment. Digestion of the PCR products with restriction endonuclease DdeI or AluI and cluster analysis of RFLP banding patterns showed that all HS:19 strains were closely related and distinct from non-HS:19 strains, consistent with earlier analyses, suggesting that HS:19 strains represent a highly clonal population. RFLP analysis of wla genes also may be useful for epidemiological studies.
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Affiliation(s)
- Naoaki Misawa
- Department of Veterinary Pubic Health, Faculty of Agriculture, Miyazaki University, Miyazaki, Japan, -u.ac.jp
| | - Kumiko Kawashima
- Department of Veterinary Pubic Health, Faculty of Agriculture, Miyazaki University, Miyazaki, Japan
| | - Fusao Kondo
- Department of Veterinary Pubic Health, Faculty of Agriculture, Miyazaki University, Miyazaki, Japan
| | - Ban Mishu Allos
- Division of Infectious Diseases, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Martin J. Blaser
- Department of Medicine, New York University School of Medicine, New York, USA, Department of Veterans Affairs Medical Center, New York, USA
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Stalin N, Srinivasan P. Molecular characterization of antibiotic resistant Vibrio harveyi isolated from shrimp aquaculture environment in the south east coast of India. Microb Pathog 2016; 97:110-8. [DOI: 10.1016/j.micpath.2016.05.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 05/22/2016] [Accepted: 05/27/2016] [Indexed: 10/21/2022]
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Gomes CN, Souza RA, Passaglia J, Duque SS, Medeiros MIC, Falcão JP. Genotyping of Campylobacter coli strains isolated in Brazil suggests possible contamination amongst environmental, human, animal and food sources. J Med Microbiol 2016; 65:80-90. [PMID: 26531157 DOI: 10.1099/jmm.0.000201] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Campylobacter coli and Campylobacter jejuni are two of the most common causative agents of food-borne gastroenteritis in numerous countries worldwide. In Brazil, campylobacteriosis is under diagnosed and under-reported, and few studies have molecularly characterized Campylobacter spp. in this country. The current study genotyped 63 C. coli strains isolated from humans (n512), animals (n521), food (n510) and the environment (n520) between 1995 and 2011 in Brazil. The strains were genotyped using pulsed-field gel electrophoresis (PFGE), sequencing the short variable region (SVR) of the flaA gene ( flaA-SVR) and high-resolution melting analysis (HRMA) of the clustered regularly interspaced short palindromic repeat (CRISPR) locus to better understand C. coli genotypic diversity and compare the suitability of these three methods for genotyping this species. Additionally, the discrimination index (DI) of each of these methods was assessed. Some C. coli strains isolated from clinical and non-clinical origins presented ≥80 % genotypic similarity by PFGE and flaA-SVR sequencing. HRMA of the CRISPR locus revealed only four different melting profiles. In total, 22 different flaA-SVR alleles were detected. Of these, seven alleles, comprising gt1647–gt1653, were classified as novel. The most frequent genotypes were gt30 and gt1647. This distribution reveals the diversity of selected Brazilian isolates in comparison with the alleles described in the PubMLST database. The DIs for PFGE, flaA–SVR sequencing and CRISPR-HRMA were 0.986, 0.916 and 0.550, respectively. PFGE and flaA-SVR sequencing were suitable for subtyping C. coli strains, in contrast to CRISPR-HRMA. The high genomic similarity amongst some C. coli strains confirms the hypothesis that environmental and food sources potentially lead to human and animal contamination in Brazil.
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Affiliation(s)
- Carolina N Gomes
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto-USP, Av. do Café, s/no, Campus Universitário USP, Ribeirão Preto, SP 14040-903, Brazil
| | - Roberto A Souza
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto-USP, Av. do Café, s/no, Campus Universitário USP, Ribeirão Preto, SP 14040-903, Brazil
| | - Jaqueline Passaglia
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto-USP, Av. do Café, s/no, Campus Universitário USP, Ribeirão Preto, SP 14040-903, Brazil
| | - Sheila S Duque
- Fundação Oswaldo Cruz (FIOCRUZ), Instituto Oswaldo Cruz, Pavilhão Rocha Lima, sala 516, Av. Brasil, 4365, Rio de Janeiro, RJ 21040-900, Brazil
| | - Marta I C Medeiros
- Instituto Adolfo Lutz de Ribeirão Preto, Rua Minas, 877 Ribeirão Preto, SP 14085-410, Brazil
| | - Juliana P Falcão
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto-USP, Av. do Café, s/no, Campus Universitário USP, Ribeirão Preto, SP 14040-903, Brazil
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Discriminative power of Campylobacter phenotypic and genotypic typing methods. J Microbiol Methods 2016; 125:33-9. [PMID: 26996762 DOI: 10.1016/j.mimet.2016.03.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/07/2016] [Accepted: 03/07/2016] [Indexed: 01/31/2023]
Abstract
The aim of this study was to compare different typing methods, individually and combined, for use in the monitoring of Campylobacter in food. Campylobacter jejuni (n=94) and Campylobacter coli (n=52) isolated from different broiler meat carcasses were characterized using multilocus sequence typing (MLST), flagellin gene A restriction fragment length polymorphism typing (flaA-RFLP), antimicrobial resistance profiling (AMRp), the presence/absence of 5 putative virulence genes; and, exclusively for C. jejuni, the determination of lipooligosaccharide (LOS) class. Discriminatory power was calculated by the Simpson's index of diversity (SID) and the congruence was measured by the adjusted Rand index and adjusted Wallace coefficient. MLST was individually the most discriminative typing method for both C. jejuni (SID=0.981) and C. coli (SID=0.957). The most discriminative combination with a SID of 0.992 for both C. jejuni and C. coli was obtained by combining MLST with flaA-RFLP. The combination of MLST with flaA-RFLP is an easy and feasible typing method for short-term monitoring of Campylobacter in broiler meat carcass.
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Ghorbanalizadgan M, Bakhshi B, Najar-Peerayeh S. PCR-RFLP Provides Discrimination for Total flaA Sequence Analysis in Clinical Campylobacter jejuni Isolates. Jpn J Infect Dis 2016; 69:373-7. [PMID: 26743147 DOI: 10.7883/yoken.jjid.2015.386] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The aims of this study were to determine the genetic relatedness among 20 clinical Campylobacter jejuni samples isolated from children with diarrhea in Iran and to introduce the best method of discrimination based on flagellin gene (flaA) sequence divergence. A total of 400 stool specimens were obtained from children under 5 years of age from July 2012 to June 2013. Primers were designed based on conserved sequences flanking the flaA gene that encompassed and amplified the entire flaA gene and followed by sequencing and data analysis with MEGA version 6.0.6 software. Ninety amino acids and 560 nucleotide polymorphic sequences were detected within 1,681 bp of the flaA sequence of which 43 (2.5%) and 12 (0.7%) were singletons, respectively. New repeat boxes within the flaA sequences were found in this study. Unweighted Pair Group Method with Arithmetic Mean dendrogram based on nucleotides of the full length flaA gene, the flaA short variable region gene and the in silico flaA phylogenic tree of DdeI restriction fragment length polymorphism (RFLP) profiles produced very similar clustering with a diversity index of 0.86 for each of the 3 methods. We conclude that flaA typing based on DdeI RFLP of the PCR products is a cheap, rapid, and reliable method for the epidemiological study of C. jejuni isolates of clinical origin in resource-limited regions or in large-scale population surveillance.
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