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Wanja DW, Mbindyo CM, Mbuthia PG, Bebora LC, Aboge GO. Molecular Detection of Virulence-Associated Markers in Campylobacter coli and Campylobacter jejuni Isolates From Water, Cattle, and Chicken Faecal Samples From Kajiado County, Kenya. BIOMED RESEARCH INTERNATIONAL 2024; 2024:4631351. [PMID: 39166218 PMCID: PMC11335418 DOI: 10.1155/2024/4631351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 07/17/2024] [Accepted: 07/24/2024] [Indexed: 08/22/2024]
Abstract
Campylobacter is a zoonotic foodborne pathogen that is often linked with gastroenteritis and other extraintestinal infections in humans. This study is aimed at determining the genetic determinants of virulence-encoding genes responsible for flagellin motility protein A (flaA), Campylobacter adhesion to fibronectin F (cadF), Campylobacter invasion antigen B (ciaB) and cytolethal distending toxin (cdt) A (cdtA) in Campylobacter species. A total of 29 Campylobacter coli isolates (16 from cattle, 9 from chicken, and 4 from water samples) and 74 Campylobacter jejuni isolates (38 from cattle, 30 from chicken, and 6 from water samples) described in an earlier study in Kajiado County, Kenya, were examined for the occurrence of virulence-associated genes using polymerase chain reaction (PCR) and amplicon sequencing. The correlations among virulence genes were analyzed using Pearson's correlation coefficient (R) method. Among the 103 Campylobacter strains screened, 89 were found to harbour a single or multiple virulence gene(s), giving an overall prevalence of 86.4%. C. jejuni strains had the highest prevalence of multivirulence at 64.9% (48/74), compared to C. coli (58.6%, 17/29). The ciaB and flaA genes were the most common virulence genes detected in C. jejuni (81.1% [60/74] and 62.2% [46/74], respectively) and in C. coli (each at 62.1%; 18/29). Campylobacter isolates from chicken harboured the most virulence-encoding genes. C. jejuni strains from chicken and cattle harboured the highest proportions of the cdtA and ciaB genes, respectively. All the C. coli strains from water samples harboured the cadF and flaA genes. The results obtained further revealed a significant positive correlation between cadF and flaA (R = 0.733). C. jejuni and C. coli strains from cattle, chicken, and water harbour virulence markers responsible for motility/colonization, invasion, adherence, and toxin production, evoking their important role in campylobacteriosis development among humans and livestock. The identification of cattle, chicken, and water samples as reservoirs of virulent Campylobacter spp. highlights the possible risk to human health. These data on some virulence genes of Campylobacter will assist food safety and public health officials in formulating policy statements.
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Affiliation(s)
- Daniel W. Wanja
- Department of Veterinary PathologyMicrobiology and ParasitologyFaculty of Veterinary MedicineUniversity of Nairobi, P.O. Box 29053-00625, Kangemi, Nairobi, Kenya
- Department of Veterinary PathologyMicrobiology and ParasitologyFaculty of Veterinary Medicine and SurgeryEgerton University, P.O. Box 536-20115, Egerton, Kenya
| | - Christine M. Mbindyo
- Department of Veterinary PathologyMicrobiology and ParasitologyFaculty of Veterinary MedicineUniversity of Nairobi, P.O. Box 29053-00625, Kangemi, Nairobi, Kenya
| | - Paul G. Mbuthia
- Department of Veterinary PathologyMicrobiology and ParasitologyFaculty of Veterinary MedicineUniversity of Nairobi, P.O. Box 29053-00625, Kangemi, Nairobi, Kenya
| | - Lilly C. Bebora
- Department of Veterinary PathologyMicrobiology and ParasitologyFaculty of Veterinary MedicineUniversity of Nairobi, P.O. Box 29053-00625, Kangemi, Nairobi, Kenya
| | - Gabriel O. Aboge
- Department of Public HealthPharmacology and ToxicologyFaculty of Veterinary MedicineUniversity of Nairobi, P.O. Box 29053-00625, Kangemi, Nairobi, Kenya
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Iqbal S, Qureshi S, Banday MS, Farooq S, Kashoo ZA, Gulzar M, Bhat MA, Pandit A, Hussain MI, 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; 87:100308. [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] [MESH Headings] [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 the fact that most patients with Guillian Barre's (GB) syndrome with a preceding history of diarrheal illness have been found to harbor wlaN gene-positive C jejuni strains. Out of the 200 samples comprising poultry meat and cloacal swabs, 21.5% of samples were found to harbor 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 the present study revealed that Campylobacter coli flaA sequence OL471375 is a new strain with a novel allele type 1,675 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 1,000 base pairs. Antimicrobial profiling of the Campylobacter spp. isolated in the 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 fluoroquinolones observed in the present study is crucial in view of fluoroquinolones being drugs of choice for the treatment of human Campylobacter infections.
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Affiliation(s)
- Saima Iqbal
- Shere Kashmir University of Agricultural Sciences & Technology of Kashmir (SKUAST-K), India
| | - Sabia Qureshi
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India.
| | - Muddasir S Banday
- Department of Clinical Pharmacology, Sheri Kashmir Institute of Medical Sciences (SKIMS), Soura, India
| | - Shaheen Farooq
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
| | - Zahid A Kashoo
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
| | - Maliha Gulzar
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
| | - M Altaf Bhat
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
| | - Arif Pandit
- Directorate of Research, SKUAST-K, Shalimar, Srinagar, J&K 190025, India
| | - Md Isfaqul Hussain
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
| | - Pervaiz Dar
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
| | - Gulzar Badroo
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
| | - Mahrukh Hafiz
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
| | - Faheem Ud Din
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
| | - Junaid Mehraj
- Campylobacter Laboratory, Division of Veterinary Microbiology & Immunology, FVSC &A.H Shuhama (Aulesteng) SKUAST-K, J&K 190006, India
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Chinivasagam HN, Estella W, Finn D, Mayer DG, Rodrigues H, Diallo I. Broiler farming practices using new or re-used bedding, inclusive of free-range, have no impact on Campylobacter levels, species diversity, Campylobacter community profiles and Campylobacter bacteriophages. AIMS Microbiol 2024; 10:12-40. [PMID: 38525040 PMCID: PMC10955168 DOI: 10.3934/microbiol.2024002] [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: 08/03/2023] [Revised: 11/27/2023] [Accepted: 12/25/2023] [Indexed: 03/26/2024] Open
Abstract
A multi-stage option to address food-safety can be produced by a clearer understanding of Campylobacter's persistence through the broiler production chain, its environmental niche and its interaction with bacteriophages. This study addressed Campylobacter levels, species, genotype, bacteriophage composition/ levels in caeca, litter, soil and carcasses across commercial broiler farming practices to inform on-farm management, including interventions. Broilers were sequentially collected as per company slaughter schedules over two-years from 17 farms, which represented four commercially adopted farming practices, prior to the final bird removal (days 39-53). The practices were conventional full clean-out, conventional litter re-use, free-range-full cleanout and free-range-litter re-use. Caeca, litter and soil collected on-farm, and representative carcases collected at the processing plant, were tested for Campylobacter levels, species dominance and Campylobacter bacteriophages. General community profiling via denaturing gradient gel electrophoresis of the flaA gene was used to establish the population relationships between various farming practices on representative Campylobacter isolates. The farming practice choices did not influence the high caeca Campylobacter levels (log 7.5 to log 8.5 CFU/g), the carcass levels (log 2.5 to log 3.2 CFU/carcass), the C. jejuni/C. coli dominance and the on-farm bacteriophage presence/levels. A principal coordinate analysis of the flaA distribution for farm and litter practices showed strong separation but no obvious farming practice related grouping of Campylobacter. Bacteriophages originated from select farms, were not practice-dependent, and were detected in the environment (litter) only if present in the birds (caeca). This multifaceted study showed no influence of farming practices on on-farm Campylobacter dynamics. The significance of this study means that a unified on-farm risk-management could be adopted irrespective of commercial practice choices to collectively address caeca Campylobacter levels, as well as the potential to include Campylobacter bacteriophage biocontrol. The impact of this study means that there are no constraints in re-using bedding or adopting free-range farming, thus contributing to environmentally sustainable (re-use) and emerging (free-range) broiler farming choices.
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Affiliation(s)
| | - Wiyada Estella
- Department of Agriculture and Fisheries, Eco Sciences Precinct, Dutton Park QLD 4102, Australia
| | - Damien Finn
- Department of Agriculture and Fisheries, Eco Sciences Precinct, Dutton Park QLD 4102, Australia
| | - David G. Mayer
- Department of Agriculture and Fisheries, Eco Sciences Precinct, Dutton Park QLD 4102, Australia
| | - Hugh Rodrigues
- Department of Agriculture and Fisheries, Eco Sciences Precinct, Dutton Park QLD 4102, Australia
| | - Ibrahim Diallo
- Department of Agriculture and Fisheries, Biosecurity Sciences Laboratory, Coopers Plains QLD 4108
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Wu X, Ji L, Shen Y, Chen L, Xu D, Dong F. Genomic characterization of Campylobacter isolates in Huzhou, China. PLoS One 2023; 18:e0289371. [PMID: 37590201 PMCID: PMC10434848 DOI: 10.1371/journal.pone.0289371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/17/2023] [Indexed: 08/19/2023] Open
Abstract
Campylobacter is a major foodborne pathogen that causes outbreaks and sporadic gastrointestinal disease, creating a serious disease burden. Campylobacter strains isolated from diarrhea cases (n = 11) and raw poultry meat products (n = 2) in Huzhou, including 11 Campylobacter jejuni and 2 Campylobacter coli strains, were subjected to virulence gene, drug resistance gene, genetic correlation, antibiotic resistance, and multilocus sequence typing (MLST) analyses. The 13 Campylobacter isolates were divided into 12 sequence types (STs), one of which was a new ST. The isolated strains contain multiple virulence-related genes. Drug sensitivity analysis showed that the resistance rate of the 13 isolates to nalidixic acid, ciprofloxacin, and tetracycline was 92.3%. Genome sequencing indicated that all 11 strains of C. jejuni carried the tet(O) and blaOXA resistance genes, and 2 strains of C. coli carried multiple drug resistance genes. Phylogenetic analysis based on core-genome single-nucleotide polymorphisms indicated that the 11 C. jejuni isolates from diarrhea patients and food sources are not closely phylogenetically related.
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Affiliation(s)
- Xiaofang Wu
- Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang, China
| | - Lei Ji
- Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang, China
| | - Yuehua Shen
- Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang, China
| | - Liping Chen
- Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang, China
| | - Deshun Xu
- Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang, China
| | - Fenfen Dong
- Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang, China
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Dias TS, de Almeida Figueira A, Costa GA, da Cunha NC, Rossi DA, de Melo RT, de Almeida Pereira VL, de Aquino MHC. SVR-flaA typing of erythromycin- and ciprofloxacin-resistant Campylobacter jejuni strains isolated from poultry slaughterhouses in southern Brazil. Braz J Microbiol 2023; 54:1065-1073. [PMID: 37055624 PMCID: PMC10234967 DOI: 10.1007/s42770-023-00969-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/03/2023] [Indexed: 04/15/2023] Open
Abstract
The emergence of fluoroquinolone and macrolide resistance in C. jejuni, a recognized zoonotic pathogen, has increased worldwide. This study aimed to investigate phenotypic resistance to ciprofloxacin and erythromycin, the molecular mechanisms involved, and the strain of C. jejuni isolated from broiler carcasses. Eighty C. jejuni isolates from broiler carcasses in southern Brazil were investigated for their susceptibility to ciprofloxacin and erythromycin at minimal inhibitory concentrations. Mismatch amplification mutation assay-polymerase chain reaction (MAMA-PCR) was performed to detect substitutions of Thr-86-Ile, A2074C, and A2075G of domain V in the 23S rRNA. The presence of ermB gene and CmeABC operon were investigated by PCR. DNA sequencing was used to detect substitutions in the L4 and L22 proteins of the erythromycin-resistant strains. The Short Variable Region (SVR) of flaA was used to type all the strains resistant to both antimicrobials. Ciprofloxacin and erythromycin resistance were detected in 81.25% and 30.00% of the strains, respectively, and minimal inhibitory concentration values ranged from ≤ 0.125 to 64 µg/mL for ciprofloxacin and 0.5 to > 128 µg/mL for erythromycin. The Thr-86-Ile mutation in gyrA was observed in 100% of the ciprofloxacin-resistant strains. Mutations in both the A2074C and A2075G positions of 23S rRNA were observed in 62.5% of the erythromycin-resistant strains, while 37.5% had only the mutation A2075G. None of the strains harbored CmeABC operon, and ermB was not detected. Using DNA sequencing, the amino acid substitution T177S was detected in L4, and substitutions I65V, A103V, and S109A were detected in L22. Twelve flaA-SVR alleles were identified among the strains, with the most common SVR-flaA allele, type 287, covering 31.03% of ciprofloxacin- and erythromycin-resistant isolates. The present study revealed a high incidence and high levels of resistance to ciprofloxacin and erythromycin, as well as broad molecular diversity in C. jejuni isolates from broiler carcasses.
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Affiliation(s)
- Thomas Salles Dias
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brasil Filho, 64, Zip Code: 24230340, Niteroi, RJ, Brazil.
| | - Arthur de Almeida Figueira
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brasil Filho, 64, Zip Code: 24230340, Niteroi, RJ, Brazil
| | - Gisllany Alves Costa
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brasil Filho, 64, Zip Code: 24230340, Niteroi, RJ, Brazil
| | - Nathalie Costa da Cunha
- Department of Preventive Veterinary Medicine, Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | - Daise Aparecida Rossi
- Laboratory of Molecular Epidemiology, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Roberta Torres de Melo
- Laboratory of Molecular Epidemiology, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Virginia Léo de Almeida Pereira
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brasil Filho, 64, Zip Code: 24230340, Niteroi, RJ, Brazil
- Department of Preventive Veterinary Medicine, Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | - Maria Helena Cosendey de Aquino
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brasil Filho, 64, Zip Code: 24230340, Niteroi, RJ, Brazil
- Department of Preventive Veterinary Medicine, Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
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Dias TS, Costa GA, de Almeida Figueira A, Dos Santos Machado L, da Cunha NC, do Nascimento ER, de Almeida Pereira VL, de Aquino MHC. Molecular markers associated with antimicrobial resistance and genotypes of Campylobacter jejuni and Campylobacter coli isolated from broiler and swine flocks in southeast Brazil. Comp Immunol Microbiol Infect Dis 2022; 88:101866. [PMID: 36027679 DOI: 10.1016/j.cimid.2022.101866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/29/2022] [Accepted: 08/16/2022] [Indexed: 12/30/2022]
Abstract
This study aimed to identify molecular markers associated with antimicrobial resistance and genotype isolates of Campylobacter spp. from broiler and swine flocks due to its importance to one-health. C. jejuni (n=27) and C. coli (n = 35) strains were screened for the antimicrobial genetic markers C257T in gyrA, A2074C and A2075G in 23S rRNA, CmeABC, ermB, tetO and blaOXA61 by PCR. Fifteen strains had SVR-flaA and porA genes sequenced to evaluate their genetic diversity. Among C. jejuni strains 62.96% had C257T mutation and only one strain had A2075G mutation. CmeA, cmeB, cmeC, tetO and blaOXA61 were detected respectively in 92.59%, 100%, 100%, 85.19%, 85.19% of the strains. All C. coli had C257T mutation; 48.75% had A2075G and cmeA, cmeB, cmeC, tetO, blaOXA61 were detected in 8.57%, 94.29%, 91.43%, 91.43%, 80%, respectively. Twelve porA and SVR-flaA alleles were detected, with a Simpson index of diversity value of 0.962.
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Affiliation(s)
- Thomas Salles Dias
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil.
| | - Gisllany Alves Costa
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | - Arthur de Almeida Figueira
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | - Leandro Dos Santos Machado
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | - Nathalie Costa da Cunha
- Department of Preventive Veterinary Medicine, Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | - Elmiro Rosendo do Nascimento
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | - Virginia Léo de Almeida Pereira
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil; Department of Preventive Veterinary Medicine, Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | - Maria Helena Cosendey de Aquino
- Postgraduate Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil; Department of Preventive Veterinary Medicine, Faculdade de Veterinária, Universidade Federal Fluminense, Niteroi, RJ, Brazil
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Chala G, Eguale T, Abunna F, Asrat D, Stringer A. Identification and Characterization of Campylobacter Species in Livestock, Humans, and Water in Livestock Owning Households of Peri-urban Addis Ababa, Ethiopia: A One Health Approach. Front Public Health 2021; 9:750551. [PMID: 34926375 PMCID: PMC8677049 DOI: 10.3389/fpubh.2021.750551] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/27/2021] [Indexed: 12/22/2022] Open
Abstract
Campylobacter is the most common cause of bacterial infectious diarrhea and acute gastroenteritis globally, and is recognized as a significant zoonotic pathogen. Antimicrobial resistance amongst Campylobacter isolates is a significant global concern. A cross-sectional study was conducted to identify and characterize Campylobacter species in humans, animals and water sources in livestock owning households of peri-urban Addis Ababa, Ethiopia; and to characterize antimicrobial resistance. A total of 519 fecal samples from humans (n = 99), livestock (n = 179), poultry (n = 69), and water (n = 172) were collected. Samples were cultured for viable Campylobacter spp. and multiplex PCR utilized for the identification and confirmation. Antimicrobial susceptibility of the isolates was assessed using the Kirby-Bauer disc diffusion method. Campylobacter spp. was detected in 67/519 (13.0%) of the total tested samples, and the household level prevalence of Campylobacter was 42.4%. The prevalence of Campylobacter spp. was: humans (10.1%), cattle (18.5%), poultry (13.0%), sheep (13.3%), goats (7.1%), and water (10.5%). Campylobacter jejuni and C. fetus were the most frequently isolated species, followed by C. coli. The majority of isolates obtained from human samples had co-occurrence with isolates from cattle, poultry or water samples from the same household. The use of stored water, the practice of indoor and outdoor manure collecting, and animal species Campylobacter positivity were significantly associated with greater odds of human Campylobacter spp. positivity. All Campylobacter isolates from humans, poultry, sheep, goats and water, and 96.0% of isolates from cattle were resistant to at least one or more of the tested antimicrobials, with 95.5% of isolates resistant to three or more classes of antimicrobials. A One Health approach is recommended to further investigate Campylobacter species infections, and other zoonotic infectious diseases, in the livestock owning populations in Ethiopia, where there is close interaction between humans, animals and the environment.
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Affiliation(s)
- Gemechu Chala
- College of Veterinary Medicine, Hawassa University, Hawassa, Ethiopia
| | - Tadesse Eguale
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Fufa Abunna
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Addis Ababa, Ethiopia
| | - Daniel Asrat
- College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Andrew Stringer
- College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
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Isolation, host specificity and genetic characterization of Campylobacter specific bacteriophages from poultry and swine sources. Food Microbiol 2021; 97:103742. [PMID: 33653521 DOI: 10.1016/j.fm.2021.103742] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 11/22/2022]
Abstract
The isolation and characterization of 304 Campylobacter specific bacteriophage isolates from broiler and swine sources is reported in this study. Genome size characterization determined by PFGE classified these isolates,called CAM1-CAM304, within the campylophages group II (n = 18) and group III (n = 286). Host range analyses showed a high host specificity and similar lytic spectrum among isolates of the same group. Campylophages of group II infected C. jejuni, C. coli and even a C. fetus strain whereas those of group III only infected C. jejuni strains. The most promising 59 campylophage candidates were selected according to their lytic activity and their genetic diversity was analyzed by RFLP using SmiI and HhaI endonucleases for group II and III campylophages, respectively. Moreover, RAPD-PCR technique was for the first time assessed in the genetic characterization of campylophages and it was shown to be effective only for those of group II. Bacteriophage isolates grouped in a same genotype displayed different host ranges, therefore, 13 campylophages of group II and eight of group III were differentiated considering all the approaches assayed. An in-depth analysis of these bacteriophages will be performed to confirm their promising potential for the biocontrol of Campylobacter within the farm to fork process.
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Nafarrate I, Lasagabaster A, Sevillano E, Mateo E. Prevalence, molecular typing and antimicrobial susceptibility of Campylobacter spp. isolates in northern Spain. J Appl Microbiol 2020; 130:1368-1379. [PMID: 32886839 DOI: 10.1111/jam.14842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/08/2020] [Accepted: 08/27/2020] [Indexed: 11/29/2022]
Abstract
AIM To analyse the prevalence, genetic diversity and antimicrobial susceptibility of Campylobacter spp. in northern Spain. METHODS AND RESULTS Campylobacter was isolated from 139 samples of broiler meat and faecal dropping of broiler and swine with a prevalence of 35·4, 62 and 42·8%, respectively. Campylobacter jejuni (n = 55) and Campylobacter coli (n = 31) were identified by multiplex-PCR in meat, faeces and human clinical samples while Campylobacter fetus (n = 3) was exclusively detected in the latter. Fingerprinting by flaA-RFLP and PFGE revealed 68 different genotypes from the 89 isolates with a Biodiversity Simpson's index of 0·98. The 86·5% of the isolates were resistant to ciprofloxacin, 85·4% to tetracycline and 49·4% to erythromycin; only three genotypes were susceptible to the three antimicrobial drugs. Multidrug resistance was detected in the 40·7% of the isolates. CONCLUSIONS Campylobacter remains prevalent in northern Spain with a high biodiversity degree. About 93·3% of the isolates were resistant to one or more drugs. SIGNIFICANCE AND IMPACT OF THE STUDY Although different measures are taken to control Campylobacter, the detection of isolates resistant to the drugs used in the treatment of campylobacteriosis is still high, including different species and genotypes. This evidences the need of additional strategies against this pathogen.
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Affiliation(s)
- I Nafarrate
- AZTI, Food Research, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, Derio (Bizkaia), Spain
| | - A Lasagabaster
- AZTI, Food Research, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, Derio (Bizkaia), Spain
| | - E Sevillano
- Department of Immunology, Microbiology and Parasitology, UFI 11/25, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - E Mateo
- Department of Immunology, Microbiology and Parasitology, UFI 11/25, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Bilbao, Spain
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Wysok B, Wojtacka J, Kivistö R. Pathogenicity of Campylobacter strains of poultry and human origin from Poland. Int J Food Microbiol 2020; 334:108830. [PMID: 32841810 DOI: 10.1016/j.ijfoodmicro.2020.108830] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 11/25/2022]
Abstract
The aim of this study was to determine the pathogenic markers associated with Campylobacter infection in humans. A total of 104 Campylobacter isolates obtained from poultry and humans were examined for the presence of nine virulence genes and their ability to adhere to, invade and produce cytotoxin were defined using HeLa cells. The diversity of the Campylobacter spp. isolates was studied based on sequencing of the SVR-region of flaA gene. Altogether 45 flaA-SVR alleles were identified among 104 Campylobacter isolates of poultry and human origin. All Campylobacter isolates possessed flaA, cadF and racR genes involved in adherence. Accordingly, all poultry and human isolates exhibited adherence towards HeLa cells at mean levels of 0.95% and 0.82% of starting viable inoculum, respectively. The genes involved in invasion (iam and pldA) and cytotoxin production (cdtA, cdtB and cdtC) were also widely distributed among the human and poultry Campylobacter isolates. Significantly higher invasiveness was observed for poultry isolates (mean level of 0.002% of starting bacterial inoculum) compared to human isolates (0.0005%). Interestingly the iam gene, associated with invasion, was more common in human (100%) than poultry (84%) isolates, and the poultry isolates lacking the iam gene showed a marked reduction in their ability to invade HeLa cells. Moreover, virB11 was present in 22% of the poultry and 70.4% of the human isolates. Strains lacking virB11 showed a slight reduction in invasion, however in the absence of iam even the poultry isolates containing virB11 were unable to invade HeLa cells. The mean cytotoxicity of Campylobacter isolates from poultry and human was 26.7% and 38.7%, respectively. Strains missing both the cdtB and cdtC genes were non-cytotoxic compared to strains containing all three cdtABC genes, which were the most cytotoxic among the C. jejuni and C. coli isolates from both sources. No cytotoxic effect was observed in only 4% of poultry and 5.6% of human isolates.
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Affiliation(s)
- Beata Wysok
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-917 Olsztyn, Poland
| | - Joanna Wojtacka
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-917 Olsztyn, Poland
| | - Rauni Kivistö
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, 00014 Helsinki, Finland.
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Wysok B, Wojtacka J, Wiszniewska-Łaszczych A, Szteyn J. Antimicrobial Resistance and Virulence Properties of Campylobacter Spp. Originating from Domestic Geese in Poland. Animals (Basel) 2020; 10:E742. [PMID: 32344537 PMCID: PMC7222810 DOI: 10.3390/ani10040742] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 02/07/2023] Open
Abstract
A total of 240 samples were evaluated for the presence of Campylobacter spp. Campylobacter was found in 83.3% of the cecum contents samples and 52.5% of the neck skin samples from carcasses. The prevailing species was C. jejuni, accounting for 87.7% of all Campylobacter isolates, and the remaining 12.3% of isolates were C. coli. All Campylobacter isolates, independent of the sample origin and species, were positive for 6 out of 15 tested genes (flaA, flhA, cadF, racR, ciaB, and cdtA genes). The prevalence of dnaJ, docA, pldA, cdtB, cdtC, and iam genes was also very common (ranging from 86.5% to 98.8%). The lowest prevalence was noted for virB11 and wlaN genes, both in Campylobacter isolates from cecum (12% and 19%) and carcasses (11.1% and 17.5%). None of the isolates tested, regardless of the sample origin, carried the cgtB gene. The highest resistance rates were observed for quinolones (90.8%) and tetracyclines (79.8%). Simultaneously, only single Campylobacter isolate was resistant to macrolides (0.6%) and none of the isolates showed resistance to aminoglycosides and amphenicols. The common presence of Campylobacter on geese carcasses as well as the detection of multidrug-resistant isolates indicate that consuming goose meat might cause a potential risk, therefore leading to human campylobacteriosis.
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Affiliation(s)
- Beata Wysok
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-917 Olsztyn, Poland; (J.W.); (A.W.-Ł.); (J.S.)
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