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Palau R, Bloomfield SJ, Jenkins C, Greig DR, Jorgensen F, Mather AE. Yersinia enterocolitica biovar 1A: An underappreciated potential pathogen in the food chain. Int J Food Microbiol 2024; 412:110554. [PMID: 38176093 DOI: 10.1016/j.ijfoodmicro.2023.110554] [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: 09/08/2023] [Revised: 12/05/2023] [Accepted: 12/21/2023] [Indexed: 01/06/2024]
Abstract
Yersinia enterocolitica is an underreported cause of foodborne gastroenteritis. Little is known of the diversity of Y. enterocolitica isolated from food and which food commodities contribute to human disease. In this study, Y. enterocolitica was isolated from 37/50 raw chicken, 8/10 pork, 8/10 salmon and 1/10 leafy green samples collected at retail in the UK. Up to 10 presumptive Y. enterocolitica isolates per positive sample underwent whole genome sequencing (WGS) and were compared with publicly available genomes. In total, 207 Y. enterocolitica isolates were analyzed and belonged to 38 sequence types (STs). Up to five STs of Y. enterocolitica were isolated from individual food samples and isolates belonging to the same sample and ST differed by 0-74 single nucleotide polymorphisms (SNPs). Biotype was predicted for 205 (99 %) genomes that all belonged to biotype 1A, previously described as non-pathogenic. However, around half (51 %) of food samples contained isolates belonging to the same ST as previously isolated from UK human cases. The closest human-derived isolates shared between 17 and 7978 single nucleotide polymorphisms (SNPs) with the food isolates. Extensive food surveillance is required to determine what food sources are responsible for Y. enterocolitica infections and to re-examine the role of biotype 1A as a human pathogen.
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Affiliation(s)
- Raphaёlle Palau
- Quadram Institute Bioscience, Norwich Research Park, Norwich, United Kingdom
| | - Samuel J Bloomfield
- Quadram Institute Bioscience, Norwich Research Park, Norwich, United Kingdom.
| | - Claire Jenkins
- United Kingdom Health Security Agency, London, United Kingdom
| | - David R Greig
- United Kingdom Health Security Agency, London, United Kingdom
| | | | - Alison E Mather
- Quadram Institute Bioscience, Norwich Research Park, Norwich, United Kingdom; University of East Anglia, Norwich, United Kingdom.
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2
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El-Saadony MT, Saad AM, Yang T, Salem HM, Korma SA, Ahmed AE, Mosa WFA, Abd El-Mageed TA, Selim S, Al Jaouni SK, Zaghloul RA, Abd El-Hack ME, El-Tarabily KA, Ibrahim SA. Avian campylobacteriosis, prevalence, sources, hazards, antibiotic resistance, poultry meat contamination, and control measures: a comprehensive review. Poult Sci 2023; 102:102786. [PMID: 37454641 PMCID: PMC10371856 DOI: 10.1016/j.psj.2023.102786] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/05/2023] [Accepted: 05/13/2023] [Indexed: 07/18/2023] Open
Abstract
Avian campylobacteriosis is a vandal infection that poses human health hazards. Campylobacter is usually colonized in the avian gut revealing mild signs in the infected birds, but retail chicken carcasses have high contamination levels of Campylobacter spp. Consequently, the contaminated avian products constitute the main source of human infection with campylobacteriosis and result in severe clinical symptoms such as diarrhea, abdominal pain, spasm, and deaths in sensitive cases. Thus, the current review aims to shed light on the prevalence of Campylobacter in broiler chickens, Campylobacter colonization, bird immunity against Campylobacter, sources of poultry infection, antibiotic resistance, poultry meat contamination, human health hazard, and the use of standard antimicrobial technology during the chicken processing of possible control strategies to overcome such problems.
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Affiliation(s)
- Mohamed T El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Ahmed M Saad
- Department of Biochemistry, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Tao Yang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, School of Pharmacy, Hainan Medical University, Haikou, 571199, China
| | - Heba M Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Sameh A Korma
- Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Ahmed Ezzat Ahmed
- Biology Department, College of Science, King Khalid University, Abha, 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, 61413, Saudi Arabia
| | - Walid F A Mosa
- Plant Production Department (Horticulture-Pomology), Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria, 21531, Egypt
| | - Taia A Abd El-Mageed
- Department of Soils and Water, Faculty of Agriculture, Fayoum University, Fayoum, 63514, Egypt
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia
| | - Soad K Al Jaouni
- Department of Hematology/Oncology, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Rashed A Zaghloul
- Department Agricultural Microbiology, Faculty of Agriculture, Benha University, Moshtohor, Qaluybia, 13736, Egypt
| | - Mohamed E Abd El-Hack
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Khaled A El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, 15551, United Arab Emirates.
| | - Salam A Ibrahim
- Food Microbiology and Biotechnology Laboratory, Carver Hall, College of Agriculture and Environmental Sciences, North Carolina A & T State University, Greensboro, NC, 27411-1064
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Pang J, Looft T, Zhang Q, Sahin O. Deciphering the Association between Campylobacter Colonization and Microbiota Composition in the Intestine of Commercial Broilers. Microorganisms 2023; 11:1724. [PMID: 37512896 PMCID: PMC10386351 DOI: 10.3390/microorganisms11071724] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/19/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023] Open
Abstract
Campylobacter is a major food safety concern and is transmitted mainly via poultry meat. We previously found that some commercial broiler farms consistently produced Campylobacter-negative flocks while others were consistently Campylobacter-positive for consecutive production cycles although the farms operated under similar management practices. We hypothesized that this difference in Campylobacter colonization might be associated with the gut microbiota composition. To address this, six commercial broiler farms were selected based on their Campylobacter status (three negative and three positive) to evaluate the microbiota differences between each farm category. For each farm on each production cycle (2-3 cycles), 40 ceca collected from five-week-old broilers were processed for microbiota analysis via 16S rRNA gene sequencing. Cecal microbiota species richness, phylogenetic diversity, community structure, and composition of Campylobacter-positive farms were noticeably different from those of Campylobacter-negative farms. Rikenella, Methanocorpusculum, Barnesiella, Parasutterella, and Helicobacter were significantly more abundant among Campylobacter-positive farms. In contrast, Ruminococcaceae, Streptococcus, Escherichia, Eggerthellaceae, Lactobacillus, Monoglobus, and Blausia were more abundant in Campylobacter-negative farms. Eggerthellaceae, Clostridia, Lachnospiraceae, Lactobacillus, Monoglobus, and Parabacteroides were significantly negatively correlated with Campylobacter abundance. These findings suggest that specific members of cecal microbiota may influence Campylobacter colonization in commercial broilers and may be further explored to control Campylobacter in poultry.
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Affiliation(s)
- Jinji Pang
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA
| | - Torey Looft
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA
- National Animal Disease Center, United States Department of Agriculture, Ames, IA 50010, USA
| | - Qijing Zhang
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA
| | - Orhan Sahin
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA
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Microbiological Quality and Safety of Fresh Turkey Meat at Retail Level, Including the Presence of ESBL-Producing Enterobacteriaceae and Methicillin-Resistant S. aureus. Foods 2023; 12:foods12061274. [PMID: 36981199 PMCID: PMC10048072 DOI: 10.3390/foods12061274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/10/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
The aim of this work was to study the microbiological safety and quality of marketed fresh turkey meat, with special emphasis on methicillin-resistant S. aureus, ESBL-producing E. coli, and K. pneumoniae. A total of 51 fresh turkey meat samples were collected at retail level in Spain. Mesophile, Pseudomonas spp., enterococci, Enterobacteriaceae, and staphylococci counts were 5.10 ± 1.36, 3.17 ± 0.87, 2.03 ± 0.58, 3.18 ± 1.00, and 2.52 ± 0.96 log CFU/g, respectively. Neither Campylobacter spp. nor Clostridium perfringens was detected in any sample. ESBL-producing K. pneumoniae and E. coli were detected in 22 (43.14%), and three (5.88%) samples, respectively, all of which were multi-resistant. Resistance to antimicrobials of category A (monobactams, and glycilcyclines) and category B (cephalosporins of third or fourth generation, polymixins, and quinolones), according to the European Medicine Agency classification, was found among the Enterobacteriaceae isolates. S. aureus and methicillin-resistant S. aureus were detected in nine (17.65%) and four samples (7.84%), respectively. Resistance to antimicrobials of category A (mupirocin, linezolid, rifampicin, and vancomycin) and category B (cephalosporins of third- or fourth generation) was found among S. aureus, coagulase-negative staphylococci, and M. caseolyticus isolates.
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Thames HT, Fancher CA, Colvin MG, McAnally M, Tucker E, Zhang L, Kiess AS, Dinh TTN, Sukumaran AT. The Prevalence of Salmonella and Campylobacter on Broiler Meat at Different Stages of Commercial Poultry Processing. Animals (Basel) 2022; 12:ani12182460. [PMID: 36139320 PMCID: PMC9495152 DOI: 10.3390/ani12182460] [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] [Received: 08/15/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022] Open
Abstract
In poultry processing, Salmonella and Campylobacter contaminations are major food safety concerns. Peracetic acid (PAA) is an antimicrobial commonly used in commercial poultry processing to reduce pathogen prevalence so as to meet the USDA-FSIS performance standards. The objective of this study was to determine the prevalence of Salmonella and Campylobacter on broiler meat in various steps of commercial poultry processing in plants that use PAA. Post-pick, pre-chill, post-chill, and drumstick chicken samples were collected from three processing plants and mechanically deboned meat (MDM) was collected from two of the three plants. Each plant was sampled thrice, and 10 samples were collected from each processing step during each visit. Among the 420 samples, 79 were contaminated with Salmonella and 155 were contaminated with Campylobacter. Salmonella and Campylobacter contamination on the post-pick samples averaged 32.2%. Significant reductions in Salmonella and Campylobacter were observed in pre-chill to post-chill samples, where the prevalence was reduced from 34% and 64.4% to nondetectable limits and 1.1%, respectively (p < 0.001). Salmonella and Campylobacter remained undetectable on the drumstick samples in all three processing plants. However, the prevalence of Salmonella and Campylobacter on MDM was similar to the post-pick prevalence, which suggests substantial cross-contamination from post-chill to MDM.
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Affiliation(s)
- Hudson T. Thames
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Courtney A. Fancher
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Mary G. Colvin
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Mika McAnally
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Emily Tucker
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Li Zhang
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Aaron S. Kiess
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27607, USA
| | - Thu T. N. Dinh
- Tyson Foods, 2200 W. Don Tyson Parkway, Springdale, AR 72762, USA
| | - Anuraj T. Sukumaran
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
- Correspondence:
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Mota-Gutierrez J, Lis L, Lasagabaster A, Nafarrate I, Ferrocino I, Cocolin L, Rantsiou K. Campylobacter spp. prevalence and mitigation strategies in the broiler production chain. Food Microbiol 2022; 104:103998. [DOI: 10.1016/j.fm.2022.103998] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 01/13/2022] [Accepted: 01/28/2022] [Indexed: 12/15/2022]
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7
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Tedersoo T, Roasto M, Mäesaar M, Kisand V, Ivanova M, Meremäe K. The Prevalence, Counts and MLST Genotypes of Campylobacter in Poultry Meat and Genomic Comparison with Clinical Isolates. Poult Sci 2022; 101:101703. [PMID: 35124442 PMCID: PMC8819112 DOI: 10.1016/j.psj.2022.101703] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 02/02/2023] Open
Abstract
Since 2005 campylobacteriosis has been the most commonly reported gastrointestinal infection in humans in the European Union with more than 200,000 cases annually. Also Campylobacter is one of the most frequent cause of food-borne outbreaks with 319 outbreaks reported to EFSA, involving 1,254 cases of disease and 125 hospitalizations in EU in 2019. Importantly poultry meat is one of the most common source for the sporadic Campylobacter infections and for strong-evidence campylobacteriosis food-borne outbreaks in EU. In present study, 429 fresh broiler chicken meat samples of Estonian, Latvian, and Lithuanian origin were collected from Estonian retail level and analyzed on a monthly basis between September 2018 and October 2019. Campylobacter spp. were isolated in 141 (32.9%) of 429 broiler chicken meat samples. Altogether 3 (1.8%), 49 (36.8%), and 89 (66.9%) of Estonian, Latvian, and Lithuanian origin broiler chicken meat samples were positive for Campylobacter spp. Among Campylobacter-positive samples, 62 (14.5%) contained Campylobacter spp. below 100 CFU/g and in 28 (6.5%) samples the count of Campylobacter spp. exceeded 1,000 CFU/g. A high prevalence of Campylobacter spp. in fresh broiler chicken meat of Lithuanian and Latvian origin in Estonian retail was observed. Additionally, 22 different multilocus sequence types were identified among 55 genotyped isolates of broiler chicken meat and human origin, of which 45 were Campylobacter jejuni (C. jejuni) and 10 were Campylobacter coli (C. coli). The most prevalent multilocus sequence types among C. jejuni was ST2229 and among C. coli ST832, ST872. C. jejuni genotypes found in both broiler chicken meat and human origin samples were ST122, ST464, ST7355, and ST9882, which indicates that imported fresh broiler chicken meat is likely the cause of human campylobacteriosis in Estonia.
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Vizzini P, Vidic J, Manzano M. Enrichment Free qPCR for Rapid Identification and Quantification of Campylobacter jejuni, C. coli, C. lari, and C. upsaliensis in Chicken Meat Samples by a New Couple of Primers. Foods 2021; 10:foods10102341. [PMID: 34681388 PMCID: PMC8535059 DOI: 10.3390/foods10102341] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/20/2021] [Accepted: 09/28/2021] [Indexed: 02/05/2023] Open
Abstract
Campylobacter is the main cause of bacterial foodborne disease and poultry meat is the principal source of human infections. Rapid methods for Campylobacter detection are urgently needed to decrease high bacterial prevalence in poultry products. In this study, we developed new primers, CampyPFw and CampyPRv, that target the 16S-23S rRNA genes of Campylobacter jejuni, C. coli, C. lari and C. upsaliensis. The primers were tested on positive and negative reference strains in pure cultures and in inoculated poultry meat samples before their application in real-time PCR (qPCR) protocol for analyzing chicken meat samples. In parallel, the samples were tested by using the ISO 10272-1:2006 method. The qPCR protocol based on CampyPFw and CampyPRv showed good sensitivity, with the limit of detection of 4.6 × 102 cells/mL in chicken samples without enrichment steps.
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Affiliation(s)
- Priya Vizzini
- Dipartimento di Scienze AgroAlimentari, Ambientali e Animali, Università di Udine, 33100 Udine, Italy;
| | - Jasmina Vidic
- AgroParisTech, INRAE, Micalis Institute, Université Paris-Saclay, 78350 Jouy en Josas, France;
| | - Marisa Manzano
- Dipartimento di Scienze AgroAlimentari, Ambientali e Animali, Università di Udine, 33100 Udine, Italy;
- Correspondence:
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Myintzaw P, Jaiswal AK, Jaiswal S. A Review on Campylobacteriosis Associated with Poultry Meat Consumption. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.1942487] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Peter Myintzaw
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin - City Campus, Central Quad, Grangegorman, Dublin, Ireland
| | - Amit K. Jaiswal
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin - City Campus, Central Quad, Grangegorman, Dublin, Ireland
- Environmental Sustainability and Health Institute, Technological University Dublin - City Campus, Dublin, Ireland
| | - Swarna Jaiswal
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin - City Campus, Central Quad, Grangegorman, Dublin, Ireland
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Wieczorek K, Bocian Ł, Osek J. Bovine and Pig Carcasses as a Source of Campylobacter in Poland: A Reservoir for Antimicrobial-Resistant Campylobacter coli. Foodborne Pathog Dis 2021; 18:462-468. [PMID: 33887151 DOI: 10.1089/fpd.2020.2914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Campylobacter is one of the most common causes of foodborne bacterial infections worldwide. Why poultry has been shown to be one of the most significant sources of these bacteria, ruminants, especially cattle, are also responsible for a high number of human Campylobacter jejuni, and to a lesser extent Campylobacter coli, infections. In this study, bovine and pig carcasses in Poland were investigated for the presence of Campylobacter and for their antimicrobial resistance. A total of 204 swabs from bovine carcasses and 355 swab samples from pig carcasses were tested during 2014-2018. Campylobacter was identified in 129 (36.3%) of the pig and in 11 (5.4%) of the bovine carcasses, respectively. The pig isolates were classified as C. coli (121; 34.1%) or C. jejuni (8; 2.3%), whereas the bovine Campylobacter were identified either as C. jejuni (8; 3.9% isolates) or C. coli (3; 1.5% strains). Resistance of the isolates (n = 140) to erythromycin, ciprofloxacin, nalidixic acid, streptomycin, and tetracycline revealed that the vast majority of C. coli was resistant to streptomycin (106 isolates; 85.5%), tetracycline (97; 78.2%), nalidixic acid (90; 72.6%), and ciprofloxacin (88; 71.0%). Among C. jejuni isolates (n = 16) the resistance rates to all antibiotics were lower than in C. coli, irrespective of the origin. A total of 74 of 121 (61.2%) C. coli isolates from the pig carcasses and one of three such isolates from the bovine samples were multiresistant. Most of the C. coli (64 isolates; 85.3%) had the ciprofloxacin+nalidixic acid+streptomycin+tetracycline resistance profile. The results suggest that pig and bovine carcasses may be an underestimated reservoir of Campylobacter, especially for C. coli in pigs. The high antimicrobial resistance rates of such strains to streptomycin, quinolones, and tetracyclines highlight the need for monitoring of these bacteria in such food and food products.
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Affiliation(s)
- Kinga Wieczorek
- Department of Hygiene of Food of Animal Origin and National Veterinary Research Institute, Puławy, Poland
| | - Łukasz Bocian
- Department of Epidemiology and Risk Assessment, National Veterinary Research Institute, Puławy, Poland
| | - Jacek Osek
- Department of Hygiene of Food of Animal Origin and National Veterinary Research Institute, Puławy, Poland
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Huang J, Zang X, Lei T, Ren F, Jiao X. Prevalence of Campylobacter spp. in Pig Slaughtering Line in Eastern China: Analysis of Contamination Sources. Foodborne Pathog Dis 2020; 17:712-719. [DOI: 10.1089/fpd.2020.2800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Jinlin Huang
- Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, People's Republic of China
| | - Xiaoqi Zang
- Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, People's Republic of China
| | - Tianyao Lei
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou, People's Republic of China
| | - Fangzhe Ren
- Joint International Research Laboratory of Agriculture and Agri-product Safety, Ministry of Education of China, Yangzhou, People's Republic of China
| | - Xinan Jiao
- Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, People's Republic of China
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A Review of Salmonella and Campylobacter in Broiler Meat: Emerging Challenges and Food Safety Measures. Foods 2020; 9:foods9060776. [PMID: 32545362 PMCID: PMC7353592 DOI: 10.3390/foods9060776] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/03/2020] [Accepted: 06/10/2020] [Indexed: 12/16/2022] Open
Abstract
Poultry is one of the largest sources of animal-based protein in the United States. Poultry processing has grown from a small local network of plants to nearly 500 plants nationwide. Two of the most persistent bacteria in poultry processing are Salmonella and Campylobacter. It was not until the introduction of Hazard Analysis and Critical Control Point systems in 1996 that major efforts to reduce bacterial contamination were developed. Traditionally, chlorine has been the industry standard for decontaminating chicken meat. However, antimicrobials such as peracetic acid, cetylpyridinium chloride, and acidified sodium chlorite have replaced chlorine as primary antimicrobials. Despite current interventions, the emergence of stress-tolerant and biofilm-forming Salmonella and Campylobacter is of primary concern. In an effort to offset growing tolerance from microbes, novel techniques such as cold plasma treatment, electrostatic spraying, and bacteriophage-based applications have been investigated as alternatives to conventional treatments, while new chemical antimicrobials such as Amplon and sodium ferrate are investigated as well. This review provides an overview of poultry processing in the United States, major microbes in poultry processing, current interventions, emerging issues, and emerging technologies in antimicrobial treatments.
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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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14
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Di Giannatale E, Calistri P, Di Donato G, Decastelli L, Goffredo E, Adriano D, Mancini ME, Galleggiante A, Neri D, Antoci S, Marfoglia C, Marotta F, Nuvoloni R, Migliorati G. Thermotolerant Campylobacter spp. in chicken and bovine meat in Italy: Prevalence, level of contamination and molecular characterization of isolates. PLoS One 2019; 14:e0225957. [PMID: 31809529 PMCID: PMC6897410 DOI: 10.1371/journal.pone.0225957] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 11/16/2019] [Indexed: 11/19/2022] Open
Abstract
Campylobacter species are common foodborne pathogens associated with cases of human gastroenteritis worldwide. A detailed understanding of the prevalence, contamination levels and molecular characteristics of Campylobacter spp. in cattle and chicken, which are likely the most important sources of human contamination, is imperative. A collection of 1243 poultry meat samples (665 chicken breasts and 578 chicken thighs) and 1203 bovine meat samples (689 hamburgers and 514 knife-cut meat preparations) were collected at retail outlets, in randomly selected supermarkets located in different Italian regions during one year. Of these samples, 17.38% of the poultry meat and 0.58% of the bovine meat samples tested positive for Campylobacter, of which 131 were Campylobacter jejuni (57.96%) and 95 were Campylobacter coli (42.03%). Campylobacter isolates were genotyped with the aim of assessing the genetic diversity, population structure, source distribution and Campylobacter transmission route to humans. All isolates were molecularly characterized by pulse field gel electrophoresis (PFGE), and further genotyped using multilocus sequence typing (MLST) and fla-SVR sequencing to gain better insight into the population structure. Antibiotic resistance was also investigate. The highest levels of resistance among chicken strains were observed for ciprofloxacin (88.25%), nalidixic acid (81.45%) and tetracycline (75.6%). PFGE analysis revealed 73 pulsotypes for C. jejuni and 54 pulsotypes for C. coli, demonstrating the existance of different and specific clones circulating in Italy. MLST of C.jejuni isolates mainly clustered in the CC353, CC354, CC21, CC206 and CC443; while C.coli isolates clustered only in CC828. The most common flaA alleles were 287 for C. jejuni and 66 for C. coli. Our study confirms that poultry meat is the main source of Campylobacteriosis, whereas red meat had a low level of contamination suggesting a minor role in transmission. The high presence of Campylobacter in retail chicken meat, paired with its increased resistance to antimicrobials with several multidrug resistance profiles detected, is alarming and represents a persistent threat to public health.
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Affiliation(s)
- Elisabetta Di Giannatale
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Paolo Calistri
- National Reference Centre for Veterinary Epidemiology, Programming, Information and Risk Analysis (COVEPI), Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Guido Di Donato
- National Reference Centre for Veterinary Epidemiology, Programming, Information and Risk Analysis (COVEPI), Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
- Dept. of Veterinary Sciences, Univ. of Pisa, Pisa, Italy
| | - Lucia Decastelli
- Department of Food Hygiene, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Torino, Italy
| | - Elisa Goffredo
- Department of Food Hygiene, Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Daniela Adriano
- Department of Food Hygiene, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Torino, Italy
| | - Maria Emanuela Mancini
- Department of Food Hygiene, Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Annamaria Galleggiante
- Department of Food Hygiene, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Torino, Italy
| | - Diana Neri
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Salvatore Antoci
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Cristina Marfoglia
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Francesca Marotta
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | | | - Giacomo Migliorati
- National Reference Laboratory for Campylobacter, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
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Igwaran A, Okoh AI. Human campylobacteriosis: A public health concern of global importance. Heliyon 2019; 5:e02814. [PMID: 31763476 PMCID: PMC6861584 DOI: 10.1016/j.heliyon.2019.e02814] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 06/07/2019] [Accepted: 11/07/2019] [Indexed: 01/18/2023] Open
Abstract
Campylobacter species are among the leading cause of bacterial foodborne and waterborne infections. In addition, Campylobacter is one of the major causative agent of bacterial gastrointestinal infections and the rise in the incidence of Campylobacter infections have been reported worldwide. Also, the emergence of some Campylobacter species as one of the main causative agent of diarrhea and the propensity of these bacteria species to resist the actions of antimicrobial agents; position them as a serious threat to the public health. This paper reviews Campylobacter pathogenicity, infections, isolation and diagnosis, their reservoirs, transmission pathways, epidemiology of Campylobacter outbreaks, prevention and treatment option, antibiotics resistance and control of antibiotics use.
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Affiliation(s)
- Aboi Igwaran
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, 5700, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
| | - Anthony Ifeanyi Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, 5700, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
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16
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Andrzejewska M, Szczepańska B, Śpica D, Klawe JJ. Prevalence, Virulence, and Antimicrobial Resistance of Campylobacter spp. in Raw Milk, Beef, and Pork Meat in Northern Poland. Foods 2019; 8:E420. [PMID: 31533265 PMCID: PMC6770586 DOI: 10.3390/foods8090420] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/08/2019] [Accepted: 09/12/2019] [Indexed: 02/07/2023] Open
Abstract
The purpose of this study was to determine whether raw milk, unpasteurized dairy products, pork, and beef available for sale in the Kujawsko-Pomorskie and Wielkopolska regions in Poland are contaminated with Campylobacter spp. bacteria and may be a potential source of infection. For isolated strains, antibiotic susceptibility and the presence of genes responsible for virulence were examined. Material for research included 1058 food samples collected between 2014 and 2018 with 454 samples of raw milk and unpasteurized dairy products (milk from vending machines, milk from owners of dairy cows, cheese, milk cream) and 604 samples of raw meat (pork, beef). The results indicated that 9.3% of the samples were positive for Campylobacter spp., and Campylobacter jejuni was predominant in this study. Campylobacter bacteria was not found in milk collected from vending machines, as well as cheese and milk cream samples. Campylobacter was noted in 12.7% of beef samples, 11.8% of raw milk purchased from individual suppliers, and 10.9% of pork samples. Resistance to erythromycin (2.0%), azithromycin (3.1%), gentamicin (4.1%), tetracycline (65.3%), and ciprofloxacin (71.4%) was determined using the disc diffusion method. Furthermore, the prevalence of racR, sodB, csrA, virB11, cdtB, iam, and wlaN genes were examined using the PCR method. The sodB, csrA, and cdtB genes exhibited the highest detection rate, but none of the genes were identified in 100% of the isolates. Statistically significant differences between the presence of virulence marker genes, including for iam, racR, and csrA markers, were noted among different sources of the isolates. Differences in the distribution of iam, wlaN, and virB11 were also shown between C. jejuni and C. coli strains. As a result of the analysis, it has been concluded that unpasteurized milk, beef, and pork could be a sources of Campylobacter pathogens. Moreover, this study revealed virulent properties of Campylobacter isolated from such food products and high resistance rates to fluoroquinolones, which may represent difficulties in campylobacteriosis treatment.
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Affiliation(s)
- Małgorzata Andrzejewska
- Department of Hygiene, Epidemiology and Ergonomics Nicolaus Copernicus University in Toruń and Ludwik Rydygier Collegium Medicum in Bydgoszcz, 9 Marii Curie Skłodowskiej St., 85-094 Bydgoszcz, Poland.
| | - Bernadeta Szczepańska
- Department of Hygiene, Epidemiology and Ergonomics Nicolaus Copernicus University in Toruń and Ludwik Rydygier Collegium Medicum in Bydgoszcz, 9 Marii Curie Skłodowskiej St., 85-094 Bydgoszcz, Poland.
| | - Dorota Śpica
- Department of Hygiene, Epidemiology and Ergonomics Nicolaus Copernicus University in Toruń and Ludwik Rydygier Collegium Medicum in Bydgoszcz, 9 Marii Curie Skłodowskiej St., 85-094 Bydgoszcz, Poland.
| | - Jacek J Klawe
- Department of Hygiene, Epidemiology and Ergonomics Nicolaus Copernicus University in Toruń and Ludwik Rydygier Collegium Medicum in Bydgoszcz, 9 Marii Curie Skłodowskiej St., 85-094 Bydgoszcz, Poland.
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17
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Lee J, Lee H, Lee S, Kim S, Ha J, Choi Y, Oh H, Kim Y, Lee Y, Yoon KS, Seo K, Yoon Y. Quantitative Microbial Risk Assessment for Campylobacter jejuni in Ground Meat Products in Korea. Food Sci Anim Resour 2019; 39:565-575. [PMID: 31508587 PMCID: PMC6728815 DOI: 10.5851/kosfa.2019.e39] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 11/06/2022] Open
Abstract
This study evaluated Campylobacter jejuni risk in ground meat products. The C. jejuni prevalence in ground meat products was investigated. To develop the predictive model, survival data of C. jejuni were collected at 4°C-30°C during storage, and the data were fitted using the Weibull model. In addition, the storage temperature and time of ground meat products were investigated during distribution. The consumption amount and frequency of ground meat products were investigated by interviewing 1,500 adults. The prevalence, temperature, time, and consumption data were analyzed by @RISK to generate probabilistic distributions. In 224 samples of ground meat products, there were no C. jejuni-contaminated samples. A scenario with a series of probabilistic distributions, a predictive model and a dose-response model was prepared to calculate the probability of illness, and it showed that the probability of foodborne illness caused by C. jejuni per person per day from ground meat products was 5.68×10-10, which can be considered low risk.
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Affiliation(s)
- Jeeyeon Lee
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Heeyoung Lee
- Food Standard Research Center, Korea Food Research Institutue, Wanju 55365, Korea
| | - Soomin Lee
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Sejeong Kim
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Jimyeong Ha
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Yukyung Choi
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Hyemin Oh
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Yujin Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Yewon Lee
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Ki-Sun Yoon
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Korea
| | - Kunho Seo
- Department of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Yohan Yoon
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea.,Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
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18
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Szosland-Fałtyn A, Bartodziejska B, Królasik J, Paziak-Domańska B, Korsak D, Chmiela M. The Prevalence of Campylobacter spp. in Polish Poultry Meat. Pol J Microbiol 2019; 67:117-120. [PMID: 30015434 DOI: 10.5604/01.3001.0011.6152] [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] [Accepted: 05/17/2017] [Indexed: 12/15/2022] Open
Abstract
The prevalence, count and molecular identification of Campylobacter spp. in Polish poultry meat were analysed. 181 samples of meat from chicken (70), turkey (47), duck (54) and goose (10) were studied. Campylobacter spp. was found in 64% of meat samples. The highest prevalence of this pathogen was detected for duck meat. On average 80% of duck samples were contaminated with Campylobacter spp. The counts of Campylobacter spp. in positive samples remained under ten colony forming units per gram of product in 59% of poultry meat. C. jejuni was more frequently detected in poultry meat than C. coli.
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Affiliation(s)
- Anna Szosland-Fałtyn
- Institute of Agricultural and Food Biotechnology, Department of Food Quality,Lodz,Poland
| | - Beata Bartodziejska
- Institute of Agricultural and Food Biotechnology, Department of Food Quality,Lodz,Poland
| | - Joanna Królasik
- Institute of Agricultural and Food Biotechnology, Department of Food Quality,Lodz,Poland
| | - Beata Paziak-Domańska
- Institute of Agricultural and Food Biotechnology, Department of Food Quality,Lodz,Poland
| | - Dorota Korsak
- Department of Food Safety, National Food and Nutrition Institute,Warsaw,Poland
| | - Magdalena Chmiela
- Division of Gastroimmunology, Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz,Lodz,Poland
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19
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Maktabi S, Ghorbanpoor M, Hossaini M, Motavalibashi A. Detection of multi-antibiotic resistant Campylobacter coli and Campylobacter jejuni in beef, mutton, chicken and water buffalo meat in Ahvaz, Iran. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2019; 10:37-42. [PMID: 31183014 PMCID: PMC6522199 DOI: 10.30466/vrf.2019.34310] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 04/17/2018] [Indexed: 12/31/2022]
Abstract
Campylobacter jejuni and C. coli are the main causes of gastrointestinal diseases in humans even in industrialized countries affecting public health. The aim of the current study was to evaluate the occurrence and antibiotic resistance of C. jejuni and C. coli in chicken meat, beef, mutton and water buffalo meat slaughtered in Ahvaz city, Iran. A total of 380 samples including chicken meat from industrial abattoirs (n = 150), chicken meat from traditional abattoirs (n = 50), fresh packed chicken meat from local markets (n = 30) and beef, mutton and water buffalo meat from industrial abattoirs (50 samples for each meat) in Ahvaz,were collected and tested for the presence of Campylobacter spp. The procedure was one-step enrichment in Preston enrichment broth followed by plating on supplemented blood agar for 24 hr under microaerophilic conditions at 42 ˚C. Suspected colonies were tested by polymerase chain reaction assay and susceptibility of the confirmed isolates to various antibiotics was investigated by the Kirby-Bauer disk diffusion method. Overall, 32 samples (8.40%) were contaminated with Campylobacter spp. Mutton was the most contaminated meat (24%), while fresh packed chicken meat were not contaminated. Among the 32 isolates, 40.60%, 34.40%, 21.90%, and 15.60% were resistant to tetracycline, ciprofloxacin, ampicillin, and streptomycin, respectively. Moreover, a high number of multi-antibiotic resistant Campylobacter spp. was determined. Since foods of animal origin are the most sources of Campylobacter infection, the presence of resistant strains to antibiotics is a potential risk to public health.
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Affiliation(s)
- Siavash Maktabi
- Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Masoud Ghorbanpoor
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Masomeh Hossaini
- MSc graduated Student, Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Amirabbas Motavalibashi
- MSc graduated Student, Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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20
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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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Mohammadpour H, Berizi E, Hosseinzadeh S, Majlesi M, Zare M. The prevalence of Campylobacter spp. in vegetables, fruits, and fresh produce: a systematic review and meta-analysis. Gut Pathog 2018; 10:41. [PMID: 30275908 PMCID: PMC6158901 DOI: 10.1186/s13099-018-0269-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 09/15/2018] [Indexed: 12/19/2022] Open
Abstract
There are a number of reports indicating correlation between outbreaks of campylobacteriosis and the consumption of raw vegetables. This study is a meta-analysis on the prevalence of Campylobacter in fresh vegetables and fruits without any location limitation, which was performed through a documented review of the available resources. Relevant literature was reviewed by trained reviewers, who examined the results for the inclusion of articles in the meta-analysis. The prevalence of Campylobacter in raw vegetables, the sample source, the Campylobacter species, and the method of detection were extracted. The prevalence of Campylobacter in vegetables, fruits, and fresh produce were estimated to be 0.53%. Analysis of the various sample groups initially showed that the bean and sprouts group was the vegetable with the highest prevalence of Campylobacter (11.08%). The rate of contamination was higher when both the molecular and conventional methods were employed. The highest prevalence of Campylobacter was found in Asia (33.4%). Despite the low prevalence, consumption of raw vegetables is inherently risky because no treatment is used to inactivate the pathogens. Therefore, proper sanitation methods are recommended to treat the raw products.
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Affiliation(s)
- Hooriyeh Mohammadpour
- Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Enayat Berizi
- Nutrition Research Center, Department of Food Hygiene and Quality Control, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeid Hosseinzadeh
- Department of Food Hygiene and Public Health, School of Veterinary Medicine, Shiraz University, Shiraz, 71345-1731 Iran
| | - Majid Majlesi
- Department of Nutrition Sciences, School of Health and Nutrition Sciences, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Morteza Zare
- Nutrition Research Center, Department of Food Hygiene and Quality Control, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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22
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Premarathne JMKJK, Anuar AS, Thung TY, Satharasinghe DA, Jambari NN, Abdul-Mutalib NA, Huat JTY, Basri DF, Rukayadi Y, Nakaguchi Y, Nishibuchi M, Radu S. Prevalence and Antibiotic Resistance against Tetracycline in Campylobacter jejuni and C. coli in Cattle and Beef Meat from Selangor, Malaysia. Front Microbiol 2017; 8:2254. [PMID: 29255448 PMCID: PMC5722848 DOI: 10.3389/fmicb.2017.02254] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 10/31/2017] [Indexed: 01/28/2023] Open
Abstract
Campylobacter is a major foodborne pathogen frequently associated with human bacterial gastroenteritis in the world. This study was conducted to determine the prevalence and antibiotic resistance of Campylobacter spp. in the beef food system in Malaysia. A total of 340 samples consisting of cattle feces (n = 100), beef (n = 120) from wet markets and beef (n = 120) from hypermarkets were analyzed for Campylobacter spp. The overall prevalence of Campylobacter was 17.4%, consisting of 33% in cattle fecal samples, 14.2% in raw beef from wet market and 7.5% in raw beef from the hypermarket. The multiplex-polymerase chain reaction (PCR) identified 55% of the strains as C. jejuni, 26% as C. coli, and 19% as other Campylobacter spp. A high percentage of Campylobacter spp. were resistant to tetracycline (76.9%) and ampicillin (69.2%), whilst low resistance was exhibited to chloramphenicol (7.6%). The MAR Index of Campylobacter isolates from this study ranged from 0.09 to 0.73. The present study indicates the potential public health risk associated with the beef food system, hence stringent surveillance, regulatory measures, and appropriate interventions are required to minimize Campylobacter contamination and prudent antibiotic usage that can ensure consumer safety.
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Affiliation(s)
- Jayasekara M. K. J. K. Premarathne
- Faculty of Food Science and Technology, Food Safety Research Center, Universiti Putra Malaysia, Seri Kembangan, Malaysia
- Department of Livestock and Avian Science, Faculty of Livestock, Fisheries and Nutrition, Wayamba University of Sri Lanka, Kuliyapitiya, Sri Lanka
| | - Aimi S. Anuar
- Faculty of Food Science and Technology, Food Safety Research Center, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Tze Young Thung
- Faculty of Food Science and Technology, Food Safety Research Center, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Dilan A. Satharasinghe
- Institute of Bio Science, Universiti Putra Malaysia, Seri Kembangan, Malaysia
- Department of Basic Veterinary Science, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya, Sri Lanka
| | - Nuzul Noorahya Jambari
- Food Safety Research Center (FOSREC), Faculty of Food Science and Technology, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Noor-Azira Abdul-Mutalib
- Food Safety Research Center (FOSREC), Faculty of Food Science and Technology, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - John Tang Yew Huat
- Faculty of Food Technology, Universiti Sultan Zainal Abidin, Kuala Terengganu, Malaysia
| | - Dayang F. Basri
- Faculty of Health Sciences, School of Diagnostic and Applied Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Yaya Rukayadi
- Faculty of Food Science and Technology, Food Safety Research Center, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | | | | | - Son Radu
- Faculty of Food Science and Technology, Food Safety Research Center, Universiti Putra Malaysia, Seri Kembangan, Malaysia
- Laboratory of Food Safety and Food Integrity, Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, Seri Kembangan, Malaysia
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23
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Kottawatta KSA, Van Bergen MAP, Abeynayake P, Wagenaar JA, Veldman KT, Kalupahana RS. Campylobacter in Broiler Chicken and Broiler Meat in Sri Lanka: Influence of Semi-Automated vs. Wet Market Processing on Campylobacter Contamination of Broiler Neck Skin Samples. Foods 2017; 6:E105. [PMID: 29186018 PMCID: PMC5742773 DOI: 10.3390/foods6120105] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/23/2017] [Accepted: 11/24/2017] [Indexed: 02/06/2023] Open
Abstract
Broiler meat can become contaminated with Campylobacter of intestinal origin during processing. The present study aimed to identify the prevalence of Campylobacter in broiler flocks and meat contamination at retail shops, and determine the influence of semi-automated and wet market processing on Campylobacter contamination of neck skin samples. Samples were collected from semi-automated plants (n = 102) and wet markets (n = 25). From each batch of broilers, pooled caecal samples and neck skin samples were tested for Campylobacter. Broiler meat purchased from retail outlets (n = 37) was also tested. The prevalence of Campylobacter colonized broiler flocks was 67%. The contamination of meat at retail was 59%. Both semi-automated and wet market processing resulted to contaminate the broiler neck skins to the levels of 27.4% and 48%, respectively. When Campylobacter-free broiler flocks were processed in semi-automated facilities 15% (5/33) of neck skin samples became contaminated by the end of processing whereas 25% (2/8) became contaminated after wet market processing. Characterization of isolates revealed a higher proportion of C. coli compared to C. jejuni. Higher proportions of isolates were resistant to important antimicrobials. This study shows the importance of Campylobacter in poultry industry in Sri Lanka and the need for controlling antimicrobial resistance.
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Affiliation(s)
- Kottawattage S A Kottawatta
- Department of Veterinary Public Health and Pharmacology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya 20400, Sri Lanka.
| | | | - Preeni Abeynayake
- Department of Veterinary Public Health and Pharmacology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya 20400, Sri Lanka.
| | - Jaap A Wagenaar
- Wageningen Bioveterinary Research, 8221 RA Lelystad, The Netherlands.
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, 3508 TD Utrecht, The Netherlands.
- WHO Collaborating Center for Campylobacter/OIE Reference Laboratory for Campylobacteriosis, 3508 TD Utrecht, The Netherlands.
| | - Kees T Veldman
- Wageningen Bioveterinary Research, 8221 RA Lelystad, The Netherlands.
| | - Ruwani S Kalupahana
- Department of Veterinary Public Health and Pharmacology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya 20400, Sri Lanka.
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Narvaez-Bravo C, Taboada EN, Mutschall SK, Aslam M. Epidemiology of antimicrobial resistant Campylobacter spp. isolated from retail meats in Canada. Int J Food Microbiol 2017; 253:43-47. [PMID: 28477522 DOI: 10.1016/j.ijfoodmicro.2017.04.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 04/21/2017] [Accepted: 04/28/2017] [Indexed: 12/01/2022]
Abstract
Campylobacter is an important zoonotic pathogen found in livestock and can cause illness in humans following consumption of raw and undercooked meat products. The objectives of this study were to determine the prevalence of Campylobacter spp. in retail meat (poultry, turkey, pork and beef) purchased in Alberta, Canada and to assess antimicrobial resistance and genetic relatedness of recovered Campylobacter strains with previously isolated strains from clinical and environmental sources. A Comparative Genomic Fingerprinting (CGF) method was used for assessing genetic relatedness of isolates. A total of 606 samples comprising 204, 110, 145 and 147 samples of retail chicken, turkey, ground beef and pork, respectively, were obtained. Campylobacter was isolated from 23.5% (48/204) of chicken samples and 14.2% (8/110) of turkey samples. Pork and beef samples were negative for Campylobacter. Campylobacter jejuni was the most common (94.6%) spp. found followed by C. coli (5.4%). Resistance to tetracycline was found in 48.1% of isolates, followed by resistance to ciprofloxacin (5.5%), nalidixic acid (5.5%), azithromycin (1.78%), and erythromycin (1.78%). All isolates were susceptible to clindamycin, florfenicol, gentamicin and telithromycin. Tetracycline resistance was attributable to the presence of the tetO gene. CGF analysis showed that Campylobacter isolated from poultry meat in this study were genetically related to clinical isolates recovered from human infections and to those isolated from animals and the environment.
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Affiliation(s)
| | | | | | - Mueen Aslam
- Agriculture and Agri-Food Canada, Lacombe, Alberta, Canada.
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Stella S, Soncini G, Ziino G, Panebianco A, Pedonese F, Nuvoloni R, Di Giannatale E, Colavita G, Alberghini L, Giaccone V. Prevalence and quantification of thermophilic Campylobacter spp. in Italian retail poultry meat: Analysis of influencing factors. Food Microbiol 2017; 62:232-238. [DOI: 10.1016/j.fm.2016.10.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 10/13/2016] [Accepted: 10/14/2016] [Indexed: 11/17/2022]
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Thépault A, Méric G, Rivoal K, Pascoe B, Mageiros L, Touzain F, Rose V, Béven V, Chemaly M, Sheppard SK. Genome-Wide Identification of Host-Segregating Epidemiological Markers for Source Attribution in Campylobacter jejuni. Appl Environ Microbiol 2017; 83:e03085-16. [PMID: 28115376 PMCID: PMC5359498 DOI: 10.1128/aem.03085-16] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/03/2017] [Indexed: 11/20/2022] Open
Abstract
Campylobacter is among the most common worldwide causes of bacterial gastroenteritis. This organism is part of the commensal microbiota of numerous host species, including livestock, and these animals constitute potential sources of human infection. Molecular typing approaches, especially multilocus sequence typing (MLST), have been used to attribute the source of human campylobacteriosis by quantifying the relative abundance of alleles at seven MLST loci among isolates from animal reservoirs and human infection, implicating chicken as a major infection source. The increasing availability of bacterial genomes provides data on allelic variation at loci across the genome, providing the potential to improve the discriminatory power of data for source attribution. Here we present a source attribution approach based on the identification of novel epidemiological markers among a reference pan-genome list of 1,810 genes identified by gene-by-gene comparison of 884 genomes of Campylobacter jejuni isolates from animal reservoirs, the environment, and clinical cases. Fifteen loci involved in metabolic activities, protein modification, signal transduction, and stress response or coding for hypothetical proteins were selected as host-segregating markers and used to attribute the source of 42 French and 281 United Kingdom clinical C. jejuni isolates. Consistent with previous studies of British campylobacteriosis, analyses performed using STRUCTURE software attributed 56.8% of British clinical cases to chicken, emphasizing the importance of this host reservoir as an infection source in the United Kingdom. However, among French clinical isolates, approximately equal proportions of isolates were attributed to chicken and ruminant reservoirs, suggesting possible differences in the relative importance of animal host reservoirs and indicating a benefit for further national-scale attribution modeling to account for differences in production, behavior, and food consumption.IMPORTANCE Accurately quantifying the relative contribution of different host reservoirs to human Campylobacter infection is an ongoing challenge. This study, based on the development of a novel source attribution approach, provides the first results of source attribution in Campylobacter jejuni in France. A systematic analysis using gene-by-gene comparison of 884 genomes of C. jejuni isolates, with a pan-genome list of genes, identified 15 novel epidemiological markers for source attribution. The different proportions of French and United Kingdom clinical isolates attributed to each host reservoir illustrate a potential role for local/national variations in C. jejuni transmission dynamics.
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Affiliation(s)
- Amandine Thépault
- Unit of Hygiene and Quality of Poultry & Pork Products, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (ANSES), Ploufragan, France
- University of Rennes 1, Rennes, France
| | - Guillaume Méric
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath, United Kingdom
| | - Katell Rivoal
- Unit of Hygiene and Quality of Poultry & Pork Products, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (ANSES), Ploufragan, France
| | - Ben Pascoe
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath, United Kingdom
| | - Leonardos Mageiros
- Swansea University Medical School, Institute of Life Science, Singleton Campus, Swansea, United Kingdom
| | - Fabrice Touzain
- Viral Genetics & Biosafety Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (ANSES), Ploufragan, France
| | - Valérie Rose
- Unit of Hygiene and Quality of Poultry & Pork Products, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (ANSES), Ploufragan, France
| | - Véronique Béven
- Viral Genetics & Biosafety Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (ANSES), Ploufragan, France
| | - Marianne Chemaly
- Unit of Hygiene and Quality of Poultry & Pork Products, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (ANSES), Ploufragan, France
| | - Samuel K Sheppard
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath, United Kingdom
- Department of Zoology, University of Oxford, Oxford, United Kingdom
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27
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Kelly J, Daly K, Moran AW, Ryan S, Bravo D, Shirazi-Beechey SP. Composition and diversity of mucosa-associated microbiota along the entire length of the pig gastrointestinal tract; dietary influences. Environ Microbiol 2017; 19:1425-1438. [PMID: 27871148 DOI: 10.1111/1462-2920.13619] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 11/01/2016] [Accepted: 11/11/2016] [Indexed: 12/21/2022]
Abstract
Mucosa-associated microbial populations of the gastrointestinal tract are in intimate contact with the outer mucus layer. This proximity offers these populations a higher potential, than lumenal microbiota, in exerting effects on the host. Functional characteristics of the microbiota and influences of host-physiology shape the composition and activity of the mucosa-associated bacterial community. We have shown previously that inclusion of an artificial sweetener, SUCRAM, included in the diet of weaning piglets modulates the composition of lumenal-residing gut microbiota and reduces weaning-related gastrointestinal disorders. In this study, using Illumina sequencing we characterised the mucosa-associated microbiota along the length of the intestine of piglets, and determined the effect of SUCRAM supplementation on mucosa-associated populations. There were clear distinctions in the composition of mucosa-associated microbiota, between small and large intestine, concordant with differences in regional oxygen distribution and nutrient provision by the host. There were significant differences in the composition of mucosa-associated compared with lumenal microbiota in pig caecum. Dietary supplementation with SUCRAM affected mucosa-associated bacterial community structure along the length of the intestinal tract. Most notably, there was a substantial reduction in predominant Campylobacter populations proposing that SUCRAM supplementation of swine diet has potential for reducing meat contamination and promoting food safety.
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Affiliation(s)
- Jennifer Kelly
- Department of Functional and Comparative Genomics, Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Kristian Daly
- Department of Functional and Comparative Genomics, Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Andrew W Moran
- Department of Functional and Comparative Genomics, Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Sheila Ryan
- Department of Functional and Comparative Genomics, Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK
| | - David Bravo
- Pancosma SA, Voie-des-Traz 6, Le Grand-Sacconex, Geneva, CH 1218, Switzerland
| | - Soraya P Shirazi-Beechey
- Department of Functional and Comparative Genomics, Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK
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Bojanić K, Midwinter AC, Marshall JC, Rogers LE, Biggs PJ, Acke E. Isolation ofCampylobacterspp. from Client-Owned Dogs and Cats, and Retail Raw Meat Pet Food in the Manawatu, New Zealand. Zoonoses Public Health 2016; 64:438-449. [DOI: 10.1111/zph.12323] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Indexed: 01/27/2023]
Affiliation(s)
- K. Bojanić
- m EpiLab; Hopkirk Research Institute; Massey University; Palmerston North New Zealand
| | - A. C. Midwinter
- m EpiLab; Hopkirk Research Institute; Massey University; Palmerston North New Zealand
| | - J. C. Marshall
- m EpiLab; Hopkirk Research Institute; Massey University; Palmerston North New Zealand
| | - L. E. Rogers
- m EpiLab; Hopkirk Research Institute; Massey University; Palmerston North New Zealand
| | - P. J. Biggs
- m EpiLab; Hopkirk Research Institute; Massey University; Palmerston North New Zealand
| | - E. Acke
- Veterinary Teaching Hospital; Institute of Veterinary; Animal and Biomedical Sciences; Massey University; Palmerston North New Zealand
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29
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Yasmin J, Ahmed MR, Cho BK. Biosensors and their Applications in Food Safety: A Review. ACTA ACUST UNITED AC 2016. [DOI: 10.5307/jbe.2016.41.3.240] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Charlermroj R, Makornwattana M, Grant IR, Elliott CT, Karoonuthaisiri N. Validation of a high-throughput immunobead array technique for multiplex detection of three foodborne pathogens in chicken products. Int J Food Microbiol 2016; 224:47-54. [DOI: 10.1016/j.ijfoodmicro.2016.02.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 01/29/2016] [Accepted: 02/25/2016] [Indexed: 12/14/2022]
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31
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Jiawang F, Xiaoyan H, Xiaojie H, Xiaoyu W, Shiming T, Xiaoshan K, Danlin L, Xiaowei C. Study on rapid detection of seven common foodborne pathogens by gene chip. ACTA ACUST UNITED AC 2016. [DOI: 10.5897/ajmr2015.7495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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32
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Skarp CPA, Hänninen ML, Rautelin HIK. Campylobacteriosis: the role of poultry meat. Clin Microbiol Infect 2015; 22:103-109. [PMID: 26686808 DOI: 10.1016/j.cmi.2015.11.019] [Citation(s) in RCA: 245] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 11/27/2015] [Accepted: 11/28/2015] [Indexed: 11/26/2022]
Abstract
The incidence of human infections caused by Campylobacter jejuni and Campylobacter coli, the main bacterial agents of gastrointestinal disease, has been increasing worldwide. Here, we review the role of poultry as a source and reservoir for Campylobacter. Contamination and subsequent colonization of broiler flocks at the farm level often lead to transmission of Campylobacter along the poultry production chain and contamination of poultry meat at retail. Yet Campylobacter prevalence in poultry, as well as the contamination level of poultry products, vary greatly between different countries so there are differences in the intervention strategies that need to be applied. Temporal patterns in poultry do not always coincide with those found in human infections. Studies in rural and urban areas have revealed differences in Campylobacter infections attributed to poultry, as poultry seems to be the predominant reservoir in urban, but not necessarily in rural, settings. Furthermore, foreign travel is considered a major risk factor in acquiring the disease, especially for individuals living in the northern European countries. Intervention strategies aimed at reducing Campylobacter colonization in poultry and focused at the farm level have been successful in reducing the number of Campylobacter cases in several countries. Increasing farm biosecurity and education of consumers are likely to limit the risk of infection. Overall, poultry is an important reservoir and source of human campylobacteriosis, although the contribution of other sources, reservoirs and transmission warrants more research.
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Affiliation(s)
- C P A Skarp
- Department of Medical Sciences, Clinical Microbiology, Uppsala University, Uppsala, Sweden
| | - M-L Hänninen
- Department of Food Hygiene and Environmental Health, University of Helsinki, Helsinki, Finland
| | - H I K Rautelin
- Department of Medical Sciences, Clinical Microbiology, Uppsala University, Uppsala, Sweden; Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland.
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