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Newman KE, Khalid S. Conformational dynamics and putative substrate extrusion pathways of the N-glycosylated outer membrane factor CmeC from Campylobacter jejuni. PLoS Comput Biol 2023; 19:e1010841. [PMID: 36638139 PMCID: PMC9879487 DOI: 10.1371/journal.pcbi.1010841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/26/2023] [Accepted: 12/26/2022] [Indexed: 01/14/2023] Open
Abstract
The outer membrane factor CmeC of the efflux machinery CmeABC plays an important role in conferring antibiotic and bile resistance to Campylobacter jejuni. Curiously, the protein is N-glycosylated, with the glycans playing a key role in the effective function of this system. In this work we have employed atomistic equilibrium molecular dynamics simulations of CmeC in a representative model of the C. jejuni outer membrane to characterise the dynamics of the protein and its associated glycans. We show that the glycans are more conformationally labile than had previously been thought. The extracellular loops of CmeC visit the open and closed states freely suggesting the absence of a gating mechanism on this side, while the narrow periplasmic entrance remains tightly closed, regulated via coordination to solvated cations. We identify several cation binding sites on the interior surface of the protein. Additionally, we used steered molecular dynamics simulations to elucidate translocation pathways for a bile acid and a macrolide antibiotic. These, and additional equilibrium simulations suggest that the anionic bile acid utilises multivalent cations to climb the ladder of acidic residues that line the interior surface of the protein.
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Affiliation(s)
- Kahlan E. Newman
- School of Chemistry, University of Southampton, Southampton, United Kingdom
| | - Syma Khalid
- School of Chemistry, University of Southampton, Southampton, United Kingdom
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- * E-mail:
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Predicting Hospital Readmission for Campylobacteriosis from Electronic Health Records: A Machine Learning and Text Mining Perspective. J Pers Med 2022; 12:jpm12010086. [PMID: 35055401 PMCID: PMC8779953 DOI: 10.3390/jpm12010086] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/09/2021] [Accepted: 12/14/2021] [Indexed: 02/04/2023] Open
Abstract
(1) Background: This study investigates influential risk factors for predicting 30-day readmission to hospital for Campylobacter infections (CI). (2) Methods: We linked general practitioner and hospital admission records of 13,006 patients with CI in Wales (1990–2015). An approach called TF-zR (term frequency-zRelevance) technique was presented to evaluates how relevant a clinical term is to a patient in a cohort characterized by coded health records. The zR is a supervised term-weighting metric to assign weight to a term based on relative frequencies of the term across different classes. Cost-sensitive classifier with swarm optimization and weighted subset learning was integrated to identify influential clinical signals as predictors and optimal model for readmission prediction. (3) Results: From a pool of up to 17,506 variables, 33 most predictive factors were identified, including age, gender, Townsend deprivation quintiles, comorbidities, medications, and procedures. The predictive model predicted readmission with 73% sensitivity and 54% specificity. Variables associated with readmission included male gender, recurrent tonsillitis, non-healing open wounds, operation for in-gown toenails. Cystitis, paracetamol/codeine use, age (21–25), and heliclear triple pack use, were associated with a lower risk of readmission. (4) Conclusions: This study gives a profile of clustered variables that are predictive of readmission associated with campylobacteriosis.
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Varrone L, Glass K, Stafford RJ, Kirk MD, Selvey L. Validation of questions designed for investigation of gastroenteritis. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.106871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Trompette M, Le Guilloux L, Souply L, Denis B, Tsouria A, Garrec H, Quentin V, Vaucel J, Locher C, Barjonet G, Marthelet P, Causse X, Poisson D, Nahon S, Joubrel-Guyot C, Grasset D, Pouedras P, Renou C, Toyer AL, Boruchowicz A, Cattoen C, Heluwaert F, Bland S, Faroux R, Desroys V, Paupard T, Verhaeghe A, Correro MO, Pujol C, Picon M, Gallou J, Kaassi M, Touroult-Jupin P, Arotcarena R, Villeneuve L, Payen JL, Libier L, Charpignon C, Rahma M, Manuardi AG, Jeanne A, Lahmek P, Condat B, Macaigne G. Increased incidence of Campylobacter enteritis and their quinolone resistance between 2010 and 2015: Results of a French national observatory conducted in 21 general hospitals (CHG). Clin Res Hepatol Gastroenterol 2019; 43:338-345. [PMID: 30528512 DOI: 10.1016/j.clinre.2018.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 10/20/2018] [Accepted: 10/30/2018] [Indexed: 02/04/2023]
Abstract
INTRODUCTION In Europe, the number of cases of Campylobacter enteritis and their quinolone resistance is increasing. The aims of this work were to evaluate: (1) the hospital epidemiology of bacterial enteritis between 2010 and 2015. (2) The proportion of Campylobacter and Salmonella enteritis. (3) Resistance to quinolones in adult and paediatric populations. (4) To investigate possible regional epidemiological and bacteriological disparities. PATIENTS AND METHODS This is a multicentric study carried out in 21 general hospitals (CHG) representing 14 French regions with a prospective collection of the results of coprocultures from 2010 to 2015 in adult and paediatric populations (children < 15 years old not exposed to quinolones). The epidemiological and bacteriological data were collected from software laboratory for positive stool cultures for Campylobacter and Salmonella. The results were compared year by year and by a period of 2 years. RESULTS In adults, Campylobacter enteritis was each year significantly more frequent than Salmonella (P < 0.001), with a significant increase from 2010 to 2015 (P < 0.05). In children, there was also a significant and stable predominance of Campylobacter enteritis over the study period (P = 0.002). The quinolone resistance of Campylobacter was greater than 50% on the whole territory, with no North-South difference over the three periods studied. It increased significantly from 2012 to 2015 in adults (48% to 55%, P < 0.05) and in children (54% to 61%, P = 0.04). CONCLUSION Our results confirm the increase in the prevalence of Campylobacter enteritis compared to Salmonella between 2010 and 2015. The quinolone resistance of Campylobacter is greater than 50% on the whole territory, stable between 2010 and 2015 in adults and significantly increased in children.
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Affiliation(s)
- Marie Trompette
- Centre hospitalier de Marne la Vallée, 2-4 cours de la Gondoire, 77600 Jossigny, France
| | - Laura Le Guilloux
- Centre hospitalier de Marne la Vallée, 2-4 cours de la Gondoire, 77600 Jossigny, France
| | - Laurent Souply
- Centre Hospitalier de Colmar, 39, avenue de la Liberté, 68024 Colmar cedex, France
| | - Bernard Denis
- Centre Hospitalier de Colmar, 39, avenue de la Liberté, 68024 Colmar cedex, France
| | - Ahmed Tsouria
- Centre hospitalier de Marne la Vallée, 2-4 cours de la Gondoire, 77600 Jossigny, France
| | - Hélène Garrec
- Centre Hospitalier de Bry sur Marne, 2r Pères-Camilliens, 94360 Bry-Sur-Marne, France
| | - Vincent Quentin
- Centre hospitalier de Saint-Brieuc, 10, rue Marcel-Proust, 22000 Saint-Brieuc, France
| | - Jacques Vaucel
- Centre hospitalier de Saint-Brieuc, 10, rue Marcel-Proust, 22000 Saint-Brieuc, France
| | - Christophe Locher
- Centre hospitalier de Meaux, 6-8, rue Saint-Fiacre, 77104 Meaux cedex, France
| | - Georges Barjonet
- Centre hospitalier de Montelimar, quartier Beausseret, route de Sauzet, 26200 Montélimar, France
| | - Patrick Marthelet
- Centre hospitalier de Montelimar, quartier Beausseret, route de Sauzet, 26200 Montélimar, France
| | - Xavier Causse
- Centre hospitalier régional d'Orléans, 14, avenue de l'Hôpital, 45067 Orléans, France
| | - Didier Poisson
- Centre hospitalier régional d'Orléans, 14, avenue de l'Hôpital, 45067 Orléans, France
| | - Stéphane Nahon
- Centre Hospitalier Intercommunal de Montfermeil, 10, rue du Général-Leclerc, 93370 Montfermeil, France
| | - Caroline Joubrel-Guyot
- Centre Hospitalier Intercommunal de Montfermeil, 10, rue du Général-Leclerc, 93370 Montfermeil, France
| | - Denis Grasset
- Centre hospitalier de Vannes, 20, boulevard Général-Maurice Guillaudot, 56017 Vannes cedex, France
| | - Pascal Pouedras
- Centre hospitalier de Vannes, 20, boulevard Général-Maurice Guillaudot, 56017 Vannes cedex, France
| | - Christophe Renou
- Centre hospitalier d'Hyères, boulevard Maréchal-Juin, 83400 Hyères, France
| | - Anne-Lise Toyer
- Centre hospitalier d'Hyères, boulevard Maréchal-Juin, 83400 Hyères, France
| | - Arnaud Boruchowicz
- Centre hospitalier de Valenciennes, avenue Désandrouin, CS 50479, 59322 Valenciennes cedex, France
| | - Christian Cattoen
- Centre hospitalier de Valenciennes, avenue Désandrouin, CS 50479, 59322 Valenciennes cedex, France
| | - Frédéric Heluwaert
- Centre hospitalier d'Annecy, 1, avenue de l'Hôpital, 74370 Metz-Tessy, France
| | - Stéphane Bland
- Centre hospitalier d'Annecy, 1, avenue de l'Hôpital, 74370 Metz-Tessy, France
| | - Roger Faroux
- Centre hospitalier de la Roche-sur-Yon, boulevard Stéphane-Moreau, 85000 La Roche-sur-Yon, France
| | - Valérie Desroys
- Centre hospitalier de la Roche-sur-Yon, boulevard Stéphane-Moreau, 85000 La Roche-sur-Yon, France
| | - Thierry Paupard
- Centre hospitalier de Dunkerque, 130, avenue Louis-Herbeaux, 59240 Dunkerque, France
| | - Annick Verhaeghe
- Centre hospitalier de Dunkerque, 130, avenue Louis-Herbeaux, 59240 Dunkerque, France
| | - Maria Ortiz Correro
- Centre hospitalier régional de Perpignan, 20, avenue du Languedoc, 66000 Perpignan, France
| | - Charlotte Pujol
- Centre hospitalier régional de Perpignan, 20, avenue du Languedoc, 66000 Perpignan, France
| | - Magali Picon
- Centre hospitalier d'Aix en Provence, avenue des Tamaris, 13100 Aix-en-Provence, France
| | - Jenny Gallou
- Centre hospitalier d'Aix en Provence, avenue des Tamaris, 13100 Aix-en-Provence, France
| | - Meddi Kaassi
- Centre hospitalier de Cholet, 1, rue de Marengo, 49300 Cholet, France
| | | | | | | | - Jean-Louis Payen
- Centre hospitalier de Bayonne, 13, avenue de l'Interne Jacques Loëb, 64100 Bayonne, France
| | - Lydie Libier
- Centre hospitalier de Bayonne, 13, avenue de l'Interne Jacques Loëb, 64100 Bayonne, France
| | - Claire Charpignon
- Institut mutualiste montsouris, 42, boulevard Jourdan, 75014 Paris, France
| | - Mahjoub Rahma
- Institut mutualiste montsouris, 42, boulevard Jourdan, 75014 Paris, France
| | - Aude Grébert Manuardi
- Centre Hospitalier de Villeneuve-Saint-Georges, 40, allée de la Source, 94190 Villeneuve-Saint-Georges, France
| | - Audrey Jeanne
- Centre Hospitalier de Villeneuve-Saint-Georges, 40, allée de la Source, 94190 Villeneuve-Saint-Georges, France
| | - Pierre Lahmek
- Centre Hospitalier de Villeneuve-Saint-Georges, 40, allée de la Source, 94190 Villeneuve-Saint-Georges, France
| | - Bertrand Condat
- Centre Hospitalier de Bry sur Marne, 2r Pères-Camilliens, 94360 Bry-Sur-Marne, France
| | - Gilles Macaigne
- Centre hospitalier de Marne la Vallée, 2-4 cours de la Gondoire, 77600 Jossigny, France.
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Berthenet E, Thépault A, Chemaly M, Rivoal K, Ducournau A, Buissonnière A, Bénéjat L, Bessède E, Mégraud F, Sheppard SK, Lehours P. Source attribution of Campylobacter jejuni shows variable importance of chicken and ruminants reservoirs in non-invasive and invasive French clinical isolates. Sci Rep 2019; 9:8098. [PMID: 31147581 PMCID: PMC6542803 DOI: 10.1038/s41598-019-44454-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 05/17/2019] [Indexed: 01/07/2023] Open
Abstract
Campylobacter jejuni is the most common cause of bacterial gastroenteritis worldwide. Mainly isolated from stool samples, C. jejuni can also become invasive. C. jejuni belongs to the commensal microbiota of a number of hosts, and infection by this bacterium can sometimes be traced back to exposure to a specific source. Here we genome sequenced 200 clinical isolates (2010–2016) and analyzed them with 701 isolate genomes from human infection, chicken, ruminants and the environment to examine the relative contribution of different reservoirs to non-invasive and invasive infection in France. Host-segregating genetic markers that can discriminate C. jejuni source were used with STRUCTURE software to probabilistically attribute the source of clinical strains. A self-attribution correction step, based upon the accuracy of source apportionment within each potential reservoir, improved attribution accuracy of clinical strains and suggested an important role for ruminant reservoirs in non-invasive infection and a potentially increased contribution of chicken as a source of invasive isolates. Structured sampling of Campylobacter in the clinic and from potential reservoirs provided evidence for variation in the contribution of different infection sources over time and an important role for non-poultry reservoirs in France. This provides a basis for ongoing genomic epidemiology surveillance and targeted interventions.
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Affiliation(s)
- Elvire Berthenet
- French National Reference Center for Campylobacters & Helicobacters, Bordeaux, France
| | - Amandine Thépault
- Unit of Hygiene and Quality of Poultry & Pork Products, Laboratory of Ploufragan-Plouzané-Niort, 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-Niort, French Agency for Food Environmental and Occupational Health & Safety (ANSES), Ploufragan, France
| | - Katell Rivoal
- Unit of Hygiene and Quality of Poultry & Pork Products, Laboratory of Ploufragan-Plouzané-Niort, French Agency for Food Environmental and Occupational Health & Safety (ANSES), Ploufragan, France
| | - Astrid Ducournau
- French National Reference Center for Campylobacters & Helicobacters, Bordeaux, France
| | - Alice Buissonnière
- French National Reference Center for Campylobacters & Helicobacters, Bordeaux, France
| | - Lucie Bénéjat
- French National Reference Center for Campylobacters & Helicobacters, Bordeaux, France
| | - Emilie Bessède
- French National Reference Center for Campylobacters & Helicobacters, Bordeaux, France.,Univ. Bordeaux, INSERM, UMR1053 Bordeaux Research in Translational Oncology, BaRITOn, 33076, Bordeaux, France
| | - Francis Mégraud
- French National Reference Center for Campylobacters & Helicobacters, Bordeaux, France.,Univ. Bordeaux, INSERM, UMR1053 Bordeaux Research in Translational Oncology, BaRITOn, 33076, Bordeaux, France
| | - Samuel K Sheppard
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath, United Kingdom
| | - Philippe Lehours
- French National Reference Center for Campylobacters & Helicobacters, Bordeaux, France. .,Univ. Bordeaux, INSERM, UMR1053 Bordeaux Research in Translational Oncology, BaRITOn, 33076, Bordeaux, France.
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Kuhn KG, Nielsen EM, Mølbak K, Ethelberg S. Determinants of sporadic Campylobacter infections in Denmark: a nationwide case-control study among children and young adults. Clin Epidemiol 2018; 10:1695-1707. [PMID: 30538574 PMCID: PMC6255050 DOI: 10.2147/clep.s177141] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Each year more than 4,000 cases of campylobacteriosis are reported in Denmark, making it the most common bacterial gastrointestinal infection. Here we describe a case-control study to identify sources of infection with a focus on environmental factors. METHODS From January to December 2016, we conducted a prospective case-control study among Danish persons aged 1-30 years. Participants were invited by letter to complete an online questionnaire. Crude and adjusted ORs were calculated and final parsimonious multivariate models developed using logistic regression. RESULTS The study recruited 1366 cases and 4,418 controls, of whom 65% and 66%, respectively, completed the questionnaire. A multivariate model for domestically acquired cases showed, among others, increased risk of infection with bathing in fresh water (OR=5.1), contact to beach sand (OR=1.8), owning a pet dog with diarrhea (OR=4.6), and eating minced beef (OR=2.6) or chicken (OR=2.5). The model for children highlighted similar risk factors but also included bathing in a paddling pool (OR=13.6) and eating fresh strawberries (OR=5.3). A separate analysis for persons reporting foreign travel showed increased infection risk when traveling to Asia, Africa, or Turkey and that eating from street kitchens and having contact to water during traveling were also risk factors. CONCLUSION Environmental factors and animal contact account for a sizeable proportion of domestic Campylobacter infections in the age group studied. The study also re-confirmed handling/consumption of chicken as an important risk factor while highlighting minced beef as a potential new risk factor. Overall, these results contribute to a better understanding of the transmission dynamics of Campylobacter and will be used to improve national guidelines for prevention of infection.
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Affiliation(s)
- Katrin Gaardbo Kuhn
- Infectious Disease Epidemiology & Prevention, Statens Serum Institut, Copenhagen, Denmark,
| | - Eva Møller Nielsen
- Bacteria, Parasites & Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Kåre Mølbak
- Infectious Disease Epidemiology & Prevention, Statens Serum Institut, Copenhagen, Denmark,
- Institute of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Steen Ethelberg
- Infectious Disease Epidemiology & Prevention, Statens Serum Institut, Copenhagen, Denmark,
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Thépault A, Rose V, Quesne S, Poezevara T, Béven V, Hirchaud E, Touzain F, Lucas P, Méric G, Mageiros L, Sheppard SK, Chemaly M, Rivoal K. Ruminant and chicken: important sources of campylobacteriosis in France despite a variation of source attribution in 2009 and 2015. Sci Rep 2018; 8:9305. [PMID: 29915208 PMCID: PMC6006168 DOI: 10.1038/s41598-018-27558-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 05/30/2018] [Indexed: 11/17/2022] Open
Abstract
Pathogen source attribution studies are a useful tool for identifying reservoirs of human infection. Based on Multilocus Sequence Typing (MLST) data, such studies have identified chicken as a major source of C. jejuni human infection. The use of whole genome sequence-based typing methods offers potential to improve the precision of attribution beyond that which is possible from 7 MLST loci. Using published data and 156 novel C. jejuni genomes sequenced in this study, we performed probabilistic host source attribution of clinical C. jejuni isolates from France using three types of genotype data: comparative genomic fingerprints; MLST genes; 15 host segregating genes previously identified by whole genome sequencing. Consistent with previous studies, chicken was an important source of campylobacteriosis in France (31-63% of clinical isolates assigned). There was also evidence that ruminants are a source (22-55% of clinical isolates assigned), suggesting that further investigation of potential transmission routes from ruminants to human would be useful. Additionally, we found evidence of environmental and pet sources. However, the relative importance as sources varied according to the year of isolation and the genotyping technique used. Annual variations in attribution emphasize the dynamic nature of zoonotic transmission and the need to perform source attribution regularly.
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Affiliation(s)
- Amandine Thépault
- Hygiene and Quality of Poultry & Pork Products Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (Anses), Ploufragan, France
- University of Rennes 1, Rennes, France
| | - Valérie Rose
- Hygiene and Quality of Poultry & Pork Products Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (Anses), Ploufragan, France
| | - Ségolène Quesne
- Hygiene and Quality of Poultry & Pork Products Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (Anses), Ploufragan, France
| | - Typhaine Poezevara
- Hygiene and Quality of Poultry & Pork Products Unit, 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
| | - Edouard Hirchaud
- Viral Genetics & Biosafety Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (Anses), Ploufragan, France
| | - Fabrice Touzain
- Viral Genetics & Biosafety Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (Anses), Ploufragan, France
| | - Pierrick Lucas
- Viral Genetics & Biosafety Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (Anses), Ploufragan, France
| | - Guillaume Méric
- 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
| | - 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, South Parks Road, Oxford, OX1 3PS, United Kingdom
| | - Marianne Chemaly
- Hygiene and Quality of Poultry & Pork Products Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (Anses), Ploufragan, France
| | - Katell Rivoal
- Hygiene and Quality of Poultry & Pork Products Unit, Laboratory of Ploufragan-Plouzané, French Agency for Food Environmental and Occupational Health & Safety (Anses), Ploufragan, France.
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A combined case-control and molecular source attribution study of human Campylobacter infections in Germany, 2011-2014. Sci Rep 2017; 7:5139. [PMID: 28698561 PMCID: PMC5505968 DOI: 10.1038/s41598-017-05227-x] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 05/25/2017] [Indexed: 11/28/2022] Open
Abstract
Campylobacter infection is the most commonly notified bacterial enteritis in Germany. We performed a large combined case-control and source attribution study (Nov 2011-Feb 2014) to identify risk factors for sporadic intestinal Campylobacter infections and to determine the relative importance of various animal sources for human infections in Germany. We conducted multivariable logistic regression analysis to identify risk factors. Source attribution analysis was performed using the asymmetric island model based on MLST data of human and animal/food isolates. As animal sources we considered chicken, pig, pet dog or cat, cattle, and poultry other than chicken. Consumption of chicken meat and eating out were the most important risk factors for Campylobacter infections. Additional risk factors were preparation of poultry meat in the household; preparation of uncooked food and raw meat at the same time; contact with poultry animals; and the use of gastric acid inhibitors. The mean probability of human C. jejuni isolates to originate from chickens was highest (74%), whereas pigs were a negligible source for C. jejuni infections. Human C. coli isolates were likely to originate from chickens (56%) or from pigs (32%). Efforts need to be intensified along the food chain to reduce Campylobacter load, especially on chicken meat.
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Assessing risk factors of sporadic Campylobacter infection: a case-control study in Arizona. Epidemiol Infect 2016; 144:829-39. [PMID: 26828241 DOI: 10.1017/s0950268815002162] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Case-control studies of sporadic Campylobacter infections have predominately been conducted in non-Hispanic populations. In Arizona, rates of campylobacteriosis have been historically higher than the national average, with particularly high rates in Hispanics. In 2010, health departments and a state university collaborated to conduct a statewide case-control study to determine whether risk factors differ in an ethnically diverse region of the United States. Statistically significant risk factors in the final multivariate model were: eating cantaloupe [odds ratio (OR) 7·64], handling raw poultry (OR 4·88) and eating queso fresco (OR 7·11). In addition, compared to non-Hispanic/non-travellers, the highest risk group were Hispanic/non-travellers (OR 7·27), and Hispanic/travellers (OR 5·87, not significant). Results of this study suggest Hispanics have higher odds of disease, probably due to differential exposures. In addition to common risk factors, consumption of cantaloupe was identified as a significant risk factor. These results will inform public health officials of the varying risk factors for Campylobacter in this region.
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Risk Factors for Sporadic Infection With Campylobacter Spp. Among Children in Israel: A Case-control Study. Pediatr Infect Dis J 2016; 35:249-52. [PMID: 26569191 DOI: 10.1097/inf.0000000000000989] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Campylobacter spp. has been identified as one of the leading causes of bacterial gastroenteritis in the world. In recent years, an increase in the incidence of campylobacteriosis in several countries, including Israel, was demonstrated. The incidence rate of campylobacteriosis in Israel increased from 22.3 per 100,000 in 1997 to 77.4 per 100,000 in 2009. The aim of this study was to explore risk factors for sporadic infection with Campylobacter among young children in Israel. METHODS A matched case-control study was performed to investigate risk factors for sporadic Campylobacter infection among 113 affected children of 1-5 years of age and 113 age-matched, gender-matched and neighborhood-matched controls. Information about exposure to potential risk factors was obtained via telephone interview and was evaluated by conditional logistic regression analysis. RESULTS In the multivariable model, for each additional chicken meal consumed during the week before the onset of illness, the odds for Campylobacter infection increased by 32% [adjusted matched odds ratios (aMOR): 1.32; 95% confidence interval (CI): 1.01-1.72; P = 0.04], whereas consumption of fruits and vegetables decreased the odds for Campylobacter infection by 97% (aMOR: 0.03; 95% CI: 0.00-0.28; P < 0.01), and for each additional child living in the household, the odds for infection decreased by 48% (aMOR: 0.52; 95% CI: 0.33-0.83; P < 0.01). Using diaper increased the odds for campylobacteriosis (aMOR: 7.36; 95% CI: 1.66-32.70; P < 0.01). CONCLUSIONS Interventions that focus on proper handling of chicken and chicken products, hand washing and encouraging consumption of fruits and vegetables could help in controlling Campylobacter infections.
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Van Cauteren D, De Valk H, Sommen C, King LA, Jourdan-Da Silva N, Weill FX, Le Hello S, Mégraud F, Vaillant V, Desenclos JC. Community Incidence of Campylobacteriosis and Nontyphoidal Salmonellosis, France, 2008-2013. Foodborne Pathog Dis 2015; 12:664-9. [PMID: 26193045 DOI: 10.1089/fpd.2015.1964] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Community incidence estimates are necessary to assess the burden and impact of infections on health and to set priorities for surveillance, research, prevention, and control strategies. The current study was performed to estimate the community incidence of campylobacteriosis and nontyphoidal salmonellosis in France from the number of laboratory-confirmed cases reported to the national reference center (NRC). The probabilities of a case in the community visiting a doctor, having a stool sample requested, having a positive laboratory test, and having the case reported to the NRC were estimated using data of national surveillance systems, national hospitalization and health insurance databases, and specific surveys informing about these parameters. Credible intervals (CrI) were calculated using Monte Carlo simulation. In addition, we estimated the number of hospitalizations for both infections in France. The annual community incidence rate in France is estimated at 842 cases per 100,000 (90%CrI 525-1690) for campylobacteriosis and 307 cases per 100,000 (90%CrI 173-611) for salmonellosis. The annual number of hospitalizations is estimated at 5182 for campylobacteriosis and 4305 for salmonellosis. The multiplication factors between cases ascertained by the surveillance system and cases in the community were 115 for campylobacteriosis and 20 for salmonellosis. They are consistent with estimates reported in other countries, indicating a high community incidence of campylobacteriosis and salmonellosis in France.
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Affiliation(s)
- Dieter Van Cauteren
- 1 Department of Infectious Diseases, French Institute for Public Health Surveillance , Saint Maurice, France
| | - Henriette De Valk
- 1 Department of Infectious Diseases, French Institute for Public Health Surveillance , Saint Maurice, France
| | - Cecile Sommen
- 1 Department of Infectious Diseases, French Institute for Public Health Surveillance , Saint Maurice, France
| | - Lisa A King
- 1 Department of Infectious Diseases, French Institute for Public Health Surveillance , Saint Maurice, France
| | - Nathalie Jourdan-Da Silva
- 1 Department of Infectious Diseases, French Institute for Public Health Surveillance , Saint Maurice, France
| | - François-Xavier Weill
- 2 Institut Pasteur , National Reference Centre for Salmonella, Unité des Bactéries Pathogènes Entériques, Paris, France
| | - Simon Le Hello
- 2 Institut Pasteur , National Reference Centre for Salmonella, Unité des Bactéries Pathogènes Entériques, Paris, France
| | - Francis Mégraud
- 3 National Reference Centre for Campylobacter and Helicobacter, University of Bordeaux , France
| | - Veronique Vaillant
- 1 Department of Infectious Diseases, French Institute for Public Health Surveillance , Saint Maurice, France
| | - Jean C Desenclos
- 1 Department of Infectious Diseases, French Institute for Public Health Surveillance , Saint Maurice, France
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Komba EVG, Mdegela RH, Msoffe PLM, Nielsen LN, Ingmer H. Prevalence, Antimicrobial Resistance and Risk Factors for Thermophilic Campylobacter Infections in Symptomatic and Asymptomatic Humans in Tanzania. Zoonoses Public Health 2015; 62:557-68. [PMID: 25753615 DOI: 10.1111/zph.12185] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Indexed: 12/01/2022]
Abstract
The genus Campylobacter comprises members known to be a leading cause of foodborne gastrointestinal illness worldwide. A study was conducted to determine the epidemiology and antimicrobial resistance of Campylobacter in humans in Morogoro, Eastern Tanzania. Isolation of Campylobacter from stool specimens adopted the Cape Town protocol. Campylobacter isolates were preliminarily identified by conventional phenotypic tests and subsequently confirmed by matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) mass spectrometry and polymerase chain reaction. Antimicrobial resistance testing employed the disc diffusion method. A small proportion of the test isolates was also subjected to agar dilution method. Risk factors for human illness were determined in an unmatched case-control study. Thermophilic Campylobacter were isolated from 11.4% of the screened individuals (n = 1195). The agreement between PCR and MALDI-TOF was perfect (κ = 1.0). Symptomatics and young individuals were infected with higher numbers than asymptomatic and adults, respectively. The majority (84.6%) of the isolates were C. jejuni and the remaining were C. coli. Isolates had highest resistance (95.6%) for colistin sulphate and lowest for ciprofloxacin (22.1%). The rates of resistance for other antibiotics (azithromycin, erythromycin, tetracycline, cephalothin, gentamycin, nalidixic acid, ampicillin, amoxycillin, norfloxacin, chloramphenicol) ranged from 44.1% to 89%. Comparison between disc diffusion and agar dilution methods indicated a good correlation, and the tests were in agreement to each other (κ ≥ 0.75). Human illness was found to be associated with young age and consumption of chicken meat and pre-prepared salad. Our data indicate the presence of antibiotic-resistant thermophilic Campylobacter in humans in the study area. There is a need for routine investigation of the presence of the organisms in gastroenteritis aetiology, including determination of their antibiotic susceptibilities.
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Affiliation(s)
- E V G Komba
- Department of Veterinary Medicine and Public Health, Faculty of Veterinary Medicine, Sokoine University of Agriculture, Morogoro, Tanzania
| | - R H Mdegela
- Department of Veterinary Medicine and Public Health, Faculty of Veterinary Medicine, Sokoine University of Agriculture, Morogoro, Tanzania
| | - P L M Msoffe
- Department of Veterinary Medicine and Public Health, Faculty of Veterinary Medicine, Sokoine University of Agriculture, Morogoro, Tanzania
| | - L N Nielsen
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - H Ingmer
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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SIVADON-TARDY V, PORCHER R, ORLIKOWSKI D, RONCO E, GAULT E, ROUSSI J, DURAND MC, SHARSHAR T, ANNANE D, RAPHAEL JC, MEGRAUD F, GAILLARD JL. Increased incidence of Campylobacter jejuni-associated Guillain-Barré syndromes in the Greater Paris area. Epidemiol Infect 2014; 142:1609-13. [PMID: 24107359 PMCID: PMC9151207 DOI: 10.1017/s095026881300263x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 09/16/2013] [Accepted: 09/18/2013] [Indexed: 11/06/2022] Open
Abstract
The role of Campylobacter jejuni as the triggering agent of Guillain-Barré syndrome (GBS) has not been reassessed since the end of the 1990s in France. We report that the number of C. jejuni-related GBS cases increased continuously between 1996 and 2007 in the Paris region (mean annual increment: 7%, P = 0·007).
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Affiliation(s)
- V. SIVADON-TARDY
- Assistance Publique-Hôpitaux de Paris (AP-HP), hôpital Ambroise Paré, Boulogne-Billancourt, France; and Université de Versailles – Saint-Quentin-en-Yvelines (UVSQ), France
| | - R. PORCHER
- AP-HP, hôpital St Louis, Paris, France; and Université Paris Diderot, Paris, France
| | - D. ORLIKOWSKI
- AP-HP, hôpital Raymond Poincaré, Garches, France; and UVSQ
| | - E. RONCO
- AP-HP, hôpital Raymond Poincaré, Garches, France; and UVSQ
| | - E. GAULT
- Assistance Publique-Hôpitaux de Paris (AP-HP), hôpital Ambroise Paré, Boulogne-Billancourt, France; and Université de Versailles – Saint-Quentin-en-Yvelines (UVSQ), France
| | - J. ROUSSI
- AP-HP, hôpital Raymond Poincaré, Garches, France; and UVSQ
| | - M.-C. DURAND
- AP-HP, hôpital Raymond Poincaré, Garches, France; and UVSQ
| | - T. SHARSHAR
- AP-HP, hôpital Raymond Poincaré, Garches, France; and UVSQ
| | - D. ANNANE
- AP-HP, hôpital Raymond Poincaré, Garches, France; and UVSQ
| | - J.-C. RAPHAEL
- AP-HP, hôpital Raymond Poincaré, Garches, France; and UVSQ
| | - F. MEGRAUD
- Université Bordeaux Segalen, Centre National de Référence des Campylobacters et Helicobacter, Bordeaux, France
| | - J.-L. GAILLARD
- Assistance Publique-Hôpitaux de Paris (AP-HP), hôpital Ambroise Paré, Boulogne-Billancourt, France; and Université de Versailles – Saint-Quentin-en-Yvelines (UVSQ), France
- AP-HP, hôpital Raymond Poincaré, Garches, France; and UVSQ
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14
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Bless PJ, Schmutz C, Suter K, Jost M, Hattendorf J, Mäusezahl-Feuz M, Mäusezahl D. A tradition and an epidemic: determinants of the campylobacteriosis winter peak in Switzerland. Eur J Epidemiol 2014; 29:527-37. [PMID: 24990236 PMCID: PMC4099532 DOI: 10.1007/s10654-014-9917-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 05/15/2014] [Indexed: 11/29/2022]
Abstract
Campylobacteriosis is the most frequently reported food borne infection in Switzerland. We investigated determinants of infections and illness experience in wintertime. A case–control study was conducted in Switzerland between December 2012 and February 2013. Cases were recruited among laboratory-confirmed campylobacteriosis patients. Population-based controls were matched according to age group, sex and canton of residence. We determined risk factors associated with campylobacteriosis, and help seeking behaviour and illness perception. The multivariable analysis identified two factors associated with an increased risk for campylobacteriosis: consumption of meat fondue (matched odds ratio [mOR] 4.0, 95 % confidence interval [CI] 2.3–7.1) and travelling abroad (mOR 2.7, 95 % CI 1.1–6.4). Univariable analysis among meat fondue consumers revealed chicken as the type of meat with the highest risk of disease (mOR 3.8, 95 % CI 1.1–13.5). Most frequently reported signs and symptoms among patients were diarrhoea (98 %), abdominal pain (81 %), fever (66 %), nausea (44 %) and vomiting (34 %). The median perceived disease severity was 8 on a 1-to-10 rating scale. Patients reported a median duration of illness of 7 days and 14 % were hospitalised. Meat fondues, mostly “Fondue chinoise”, traditionally consumed during the festive season in Switzerland, are the major driver of the epidemic campylobacteriosis peak in wintertime. At these meals, individual handling and consumption of chicken meat may play an important role in disease transmission. Laboratory-confirmed patients are severely ill and hospitalisation rate is considerable. Public health measures such as decontamination of chicken meat and improved food handling behaviour at the individual level are urgently needed.
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Affiliation(s)
- Philipp Justus Bless
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4002, Basel, Switzerland
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15
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Maue AC, Poly F, Guerry P. A capsule conjugate vaccine approach to prevent diarrheal disease caused by Campylobacter jejuni. Hum Vaccin Immunother 2014; 10:1499-504. [PMID: 24632556 DOI: 10.4161/hv.27985] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Campylobacter jejuni is a major cause of diarrheal disease and results in high levels of morbidity and economic loss in both industrialized and developing regions of the world. To date, prior vaccine approaches have failed to confer protection against this enteric pathogen. Key challenges to the development of a practical Campylobacter vaccine for human use include a lack of understanding of Campylobacter pathogenesis and well-defined immune correlates of protection. With the discovery that C. jejuni expresses a capsule polysaccharide associated with virulence, a conjugate vaccine approach is currently being evaluated. Conjugate vaccines have been successfully developed and implemented against other invasive mucosal pathogens including Streptococcus pneumoniae, Neisseria meningitidis, and Hemophilus influenzae. Furthermore, Shigella-based conjugate vaccines based on lipopolysaccharide have shown promising results in field trials. A prototype C. jejuni conjugate vaccine is currently entering human testing.
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Affiliation(s)
- Alexander C Maue
- Enteric Diseases Department; Naval Medical Research Center; Silver Spring, MD USA
| | - Frédéric Poly
- Enteric Diseases Department; Naval Medical Research Center; Silver Spring, MD USA
| | - Patricia Guerry
- Enteric Diseases Department; Naval Medical Research Center; Silver Spring, MD USA
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16
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Fullerton KE, Scallan E, Kirk MD, Mahon BE, Angulo FJ, de Valk H, van Pelt W, Gauci C, Hauri AM, Majowicz S, O'Brien SJ. Case-control studies of sporadic enteric infections: a review and discussion of studies conducted internationally from 1990 to 2009. Foodborne Pathog Dis 2014; 9:281-92. [PMID: 22443481 DOI: 10.1089/fpd.2011.1065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Epidemiologists have used case-control studies to investigate enteric disease outbreaks for many decades. Increasingly, case-control studies are also used to investigate risk factors for sporadic (not outbreak-associated) disease. While the same basic approach is used, there are important differences between outbreak and sporadic disease settings that need to be considered in the design and implementation of the case-control study for sporadic disease. Through the International Collaboration on Enteric Disease "Burden of Illness" Studies (the International Collaboration), we reviewed 79 case-control studies of sporadic enteric infections caused by nine pathogens that were conducted in 22 countries and published from 1990 through to 2009. We highlight important methodological and study design issues (including case definition, control selection, and exposure assessment) and discuss how approaches to the study of sporadic enteric disease have changed over the last 20 years (e.g., making use of more sensitive case definitions, databases of controls, and computer-assisted interviewing). As our understanding of sporadic enteric infections grows, methods and topics for case-control studies are expected to continue to evolve; for example, advances in understanding of the role of immunity can be used to improve control selection, the apparent protective effects of certain foods can be further explored, and case-control studies can be used to provide population-based measures of the burden of disease.
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Affiliation(s)
- Kathleen E Fullerton
- Enteric Diseases Epidemiology Branch, Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging Zoonotic and Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
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17
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Riddle MS, Gutierrez RL, Verdu EF, Porter CK. The chronic gastrointestinal consequences associated with campylobacter. Curr Gastroenterol Rep 2012; 14:395-405. [PMID: 22864805 DOI: 10.1007/s11894-012-0278-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Campylobacteriosis is a leading cause of acute infectious diarrhea in the developing world, where it causes considerable mortality, and in developed countries, where it accounts for significant healthcare and other costs. Evidence has emerged from basic science, clinical, and epidemiological domains that suggests that Campylobacter infection is not limited to acute illness but is also involved in the development of well-described extraintestinal sequelae, such as the Guillain-Barré syndrome and reactive arthritis, and may also contribute to the pathogenesis of chronic gastrointestinal conditions. This review will focus on the role of Campylobacter infection as a risk factor for the development of chronic gastrointestinal sequelae, such as functional gastrointestinal disorders, with which irritable bowel syndrome has been most frequently associated, inflammatory bowel disease, and celiac disease.
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Affiliation(s)
- Mark S Riddle
- Enteric Diseases Department, Naval Medical Research Center, Silver Spring, MD 20910, USA.
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18
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Lehours P, Aladjidi N, Sarlangue J, Mégraud F. [Campylobacter infections in children]. Arch Pediatr 2012; 19:629-34. [PMID: 22559950 DOI: 10.1016/j.arcped.2012.03.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Revised: 02/03/2012] [Accepted: 03/23/2012] [Indexed: 11/19/2022]
Abstract
Campylobacter infections are essentially enteric infections frequently occurring before 15 years of age. The main species responsible for these infections is Campylobacter jejuni. The infection is observed mainly during summertime, and boys are more often affected than girls. The transmission is usually food-borne (poultry or cross-contamination of raw food). Environmental contamination is also possible. In addition to the digestive symptoms, systemic infectious complications or postinfectious complications (joints, neurological) can occur. The infection is more severe in immunosuppressed patients. Conventional diagnosis by culture is now challenged by molecular and immunoenzymatic methods, which have greater sensitivity. An adapted antimicrobial treatment improves the digestive symptoms. A dual antibiotic therapy is necessary in case of systemic infection or secondary localization of the infection.
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Affiliation(s)
- P Lehours
- Laboratoire de bactériologie, hôpital Pellegrin, place Amélie-Raba-Léon, 33076 Bordeaux, France; Inserm U853, centre national de référence des Campylobacters et Helicobacters, université de Bordeaux, 33076 Bordeaux, France
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19
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Pfeiffer ML, DuPont HL, Ochoa TJ. The patient presenting with acute dysentery--a systematic review. J Infect 2012; 64:374-86. [PMID: 22266388 DOI: 10.1016/j.jinf.2012.01.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 01/05/2012] [Accepted: 01/09/2012] [Indexed: 12/29/2022]
Abstract
OBJECTIVES The etiologies, clinical presentations and diagnosis of acute pathogen-specific dysentery in children and adults in industrialized and developing regions is described to help develop recommendations for therapy. METHODS We conducted a systematic review of literature published between January 2000 and June 2011 to determine the frequency of occurrence of pathogen-specific dysentery. RESULTS Shigella, Salmonella, and Campylobacter remain the most frequent bacterial causes of dysentery worldwide. Shiga toxin-producing Escherichia coli (STEC) is potentially important in industrialized countries. Entamoeba histolytica must be considered in the developing world, particularly in rural or periurban areas. Clinicians should use epidemiological clues and knowledge of endemicity to suspect Vibrio spp., Aeromonas spp., Plesiomonas spp., Yersinia enterocolitica, Clostridium difficile, Cytomegalovirus or Schistosoma mansoni in cases presenting with dysentery. A single fecal sample studied for etiologic agents is the customary way to make an etiologic diagnosis. CONCLUSIONS While a majority of dysenteric cases will not have an identifiable agent causing the illness, when an etiologic organism is identified, other than STEC, each has a specific recommended form of therapy, which is provided in this review.
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Source attribution of human campylobacteriosis using a meta-analysis of case-control studies of sporadic infections. Epidemiol Infect 2012; 140:970-81. [PMID: 22214729 DOI: 10.1017/s0950268811002676] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Campylobacter spp. is a widespread and important cause of human illness worldwide. Disease is frequently associated with foodborne transmission, but other routes of exposure, such as direct contact with live animals and person-to-person transmission, are also recognized. Identifying the most important sources of human disease is essential for prioritizing food safety interventions and setting public health goals. Numerous case-control studies of sporadic infections of campylobacteriosis have been published. These studies investigated a variety of potential risk factors for disease, often using different methodologies and settings. Systematic reviews (SRs) consist of a formal process for literature review focused on a specific research question, and include the identification of relevant literature, quality assessment of relevant studies, summarization or statistical analysis of data, and conclusions. With the objective of identifying the most important risk factors for human sporadic campylobacteriosis, we performed a SR of case-control studies of human sporadic cases and a meta-analysis of the obtained results. A combined SR focusing on Salmonella and Campylobacter studies was performed and the results analysed separately. From 1295 identified references, 131 passed the relevance screening, 73 passed the quality assessment stage, and data was extracted from 72 studies. Of these, 38 focused on campylobacteriosis. Information on exposures of cases and controls, and estimated odds ratios for investigated risk factors were collected and analysed. In the meta-analysis, heterogeneity between the studies and possible sources of bias were investigated, and pooled odds ratios for identified risk factors were estimated. Results suggest that travelling abroad, eating undercooked chicken, environmental sources, and direct contact with farm animals were significant risk factors for campylobacteriosis. Sub-analyses by geographical region, age group, and study period were performed, and differences were discussed.
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Abstract
A growing number of Campylobacter species other than C. jejuni and C. coli have been recognized as emerging human and animal pathogens. Although C. jejuni continues to be the leading cause of bacterial gastroenteritis in humans worldwide, advances in molecular biology and development of innovative culture methodologies have led to the detection and isolation of a range of under-recognized and nutritionally fastidious Campylobacter spp., including C. concisus, C. upsaliensis and C. ureolyticus. These emerging Campylobacter spp. have been associated with a range of gastrointestinal diseases, particularly gastroenteritis, IBD and periodontitis. In some instances, infection of the gastrointestinal tract by these bacteria can progress to life-threatening extragastrointestinal diseases. Studies have shown that several emerging Campylobacter spp. have the ability to attach to and invade human intestinal epithelial cells and macrophages, damage intestinal barrier integrity, secrete toxins and strategically evade host immune responses. Members of the Campylobacter genus naturally colonize a wide range of hosts (including pets, farm animals and wild animals) and are frequently found in contaminated food products, which indicates that these bacteria are at risk of zoonotic transmission to humans. This Review presents the latest information on the role and clinical importance of emerging Campylobacter spp. in gastrointestinal health and disease.
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Affiliation(s)
- Si Ming Man
- Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge CB3 0ES, UK.
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22
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Abstract
Diarrhea is a very frequent symptom. A great variety of chemical agents, microorganisms, and biotoxins can cause diarrhea, acute or persistent, slight or serious. From the epidemiological point of view, the cases can be sporadic or epidemic, and identification of the infection source and transmission mechanism is important for prevention and control. Knowledge of the etiology is a great help. The entrance route to the human body is usually through the digestive system. From some source in an individual's surroundings, the causal agent somehow reaches the mouth of the susceptible person. The hands play a fundamental role in many situations. This article revises the most important epidemiological characteristics of the agents that produce diarrhea as a main symptom, placing an emphasis on epidemiological point of view and environmental transmission mechanisms. Some aspects regarding individual susceptibility (genetic or other types) are also mentioned. Because the long-term consequences of infectious gastroenteritis are less well known, a small section dedicated to the long-term consequences of infectious gastroenteritis has been included. With suitable prevention, not only the acute consequences but also the aftereffects of these diseases can be avoided.
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Epidemiology of Infectious Diarrhea. ENCYCLOPEDIA OF ENVIRONMENTAL HEALTH 2011. [PMCID: PMC7152201 DOI: 10.1016/b978-0-444-52272-6.00689-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Diarrhea is a very frequent symptom. A great variety of chemical agents, microorganisms, and biotoxins can cause diarrhea, acute or persistent, slight or serious. From the epidemiological point of view, the cases can be sporadic or epidemic, and identification of the infection source and transmission mechanism is important for prevention and control. Knowledge of the etiology is a great help. The entrance route to the human body is usually through the digestive system. From some source in an individual's surroundings, the causal agent somehow reaches the mouth of the susceptible person. The hands play a fundamental role in many situations. This article revises the most important epidemiological characteristics of the agents that produce diarrhea as a main symptom, placing an emphasis on epidemiological point of view and environmental transmission mechanisms. Some aspects regarding individual susceptibility (genetic or other types) are also mentioned. Because the long-term consequences of infectious gastroenteritis are less well known, a small section dedicated to the long-term consequences of infectious gastroenteritis has been included. With suitable prevention, not only the acute consequences but also the aftereffects of these diseases can be avoided.
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Risk factors for indigenousCampylobacter jejuniandCampylobacter coliinfections in The Netherlands: a case-control study. Epidemiol Infect 2010; 138:1391-404. [DOI: 10.1017/s095026881000052x] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
SUMMARYA case-control study comprising 1315Campylobacter jejunicases, 121Campylobacter colicases and 3409 frequency-matched controls was conducted in The Netherlands in 2002–2003. Risk factors for bothC. jejuniandC. colienteritis were consumption of undercooked meat and barbecued meat, ownership of cats and use of proton pump inhibitors. Consumption of chicken was a predominant risk factor forC. jejunienteritis, but many additional risk factors were identified. Unique risk factors forC. coliinfections were consumption of game and tripe, and swimming. Contact with farm animals and persons with gastroenteritis were predominant risk factors forC. jejunienteritis in young children (0–4 years). Important risk factors for the elderly (⩾60 years) were eating in a restaurant, use of proton pump inhibitors and having a chronic intestinal illness. Consumption of chicken in spring, steak tartare in autumn and winter and barbecued meat in rural areas showed strong associations withC. jejuniinfections. This study illustrates that important differences in risk factors exist for differentCampylobacterspp. and these may differ dependent on age, season or degree of urbanization.
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25
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An overview of foodborne pathogen detection: In the perspective of biosensors. Biotechnol Adv 2010; 28:232-54. [DOI: 10.1016/j.biotechadv.2009.12.004] [Citation(s) in RCA: 805] [Impact Index Per Article: 57.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2008] [Revised: 12/03/2009] [Accepted: 12/04/2009] [Indexed: 12/12/2022]
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26
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Scientific Opinion on Quantification of the risk posed by broiler meat to human campylobacteriosis in the EU. EFSA J 2010. [DOI: 10.2903/j.efsa.2010.1437] [Citation(s) in RCA: 158] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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Tam CC, Higgins CD, Neal KR, Rodrigues LC, Millership SE, O'Brien SJ. Chicken consumption and use of acid-suppressing medications as risk factors for Campylobacter enteritis, England. Emerg Infect Dis 2010; 15:1402-8. [PMID: 19788807 PMCID: PMC2819848 DOI: 10.3201/eid1509.080773] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
In a case-control study of Campylobacter spp. risk factors in England during 2005-2006, we identified recent consumption of commercially prepared chicken as an important risk factor. The risk for illness associated with recent chicken consumption was much lower for persons who regularly ate chicken than in those who did not, which suggests that partial immunologic protection may follow regular chicken preparation or consumption. Chicken-related risk factors accounted for 41% of cases; acid-suppressing medication, for 10%; self-reported past Campylobacter enteritis, 2%; and recent acquisition of a pet dog, 1%. Understanding the risks associated with chicken from different sources will benefit strategies to reduce Campylobacter infections. Better characterization of immune correlates for Campylobacter infection is necessary to assess the relative importance of immunity and behavioral factors in determining risk.
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Affiliation(s)
- Clarence C Tam
- Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK.
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28
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Curved and spiral bacilli. Infect Dis (Lond) 2010. [DOI: 10.1016/b978-0-323-04579-7.00171-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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29
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Conlon CP. Food-borne diarrheal illness. Infect Dis (Lond) 2010. [DOI: 10.1016/b978-0-323-04579-7.00034-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Patient-reported complications associated with Campylobacter jejuni infection. Epidemiol Infect 2009; 138:1004-11. [PMID: 19887016 DOI: 10.1017/s0950268809991099] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
This study aimed to investigate the occurrence of complications, especially musculoskeletal symptoms, after sporadic Campylobacter jejuni enteritis of domestic origin in Finland. This multi-centre cross-sectional study was conducted during a seasonal peak in 2002. Questionnaires were sent to Campylobacter-positive patients, representing different geographical areas, 2 months after collection of positive stool samples. Medical records were viewed in several cases. Besides antimicrobial susceptibility testing C. jejuni isolates were serotyped. A total of 235 patients (58%) returned the questionnaire and 201 C. jejuni-positive patients were finally included in the study. Musculoskeletal symptoms associated with C. jejuni enteritis were frequent (39%); joint pain was most commonly reported (81%). The incidence of reactive arthritis was 4% and that of Achilles enthesopathy and/or heel pain was 9%. Stomach ache during enteritis was associated with the later development of joint pain. Antimicrobial treatment was common but did not prevent complications.
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Antimicrobial susceptibility profiles of thermophilic campylobacters isolated from patients in the town of Nis. VOJNOSANIT PREGL 2009; 66:522-6. [PMID: 19678575 DOI: 10.2298/vsp0907522m] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND/AIM In some clinical forms of human Campylobacter infections, such as prolonged diarrhea or associated with postinfections sequels, antibacterial treatment is necessary. The aim of the present study was to evaluate the antimicrobial susceptibility of thermophilic Campylobacter strains isolated from patients with diarrhea, as well as from patients with diarrhea followed by postinfections sequels, to drugs used in the therapy of enterocolitis, and to nalidixic acid used in laboratory identification and differentiation of thermophilic Campylobacter spp. METHODS We studied the antimicrobial susceptibility profiles of 131 Campylobacter strains isolated from patients with diarrhea (122 strains), diarrhea associated with rheumatic disorders (8 strains), and one strain isolated from a patient with Guillain-Barré Syndrome following Campylobacter enterocolitis. Susceptibility testing to erythromycin, gentamicin, tetracycline, chloramphenicol, ciprofloxacin and nalidixic acid was performed by the agar dilution method. RESULTS In the strains we investigated, resistance to gentamicin and chloramphenicol was not recorded, whereas a low rate of strains resistant to erythromycin (2.4%), a higher prevalence of strains resistant to tetracycline (9.9%), and a high level of resistance to ciprofloxacin (29.8%) and nalidixic acid (33.3%) were registered. All strains resistant to nalidixic acid were also resistant to ciprofloxacin. In addition, there was no difference in the occurrence of resistance between strains isolated from patients with diarrhea as compared to those isolated from patients with diarrhea followed by postinfection disorders. CONCLUSION The fact that the most of Campylobacter strains were sensitive to erythromycin and all to gentamicin, makes erythromycin an antibiotic of choice in the treatment of Campylobacter diarrhea and gentamicin when parenteral therapy should be administered. Resistance to tetracycline and, especially, ciprofloxacin, necessitates antibiotic susceptibility testing.
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Risk factors for campylobacteriosis: an epidemiological surveillance study of patients and retail poultry. J Clin Microbiol 2009; 47:2616-9. [PMID: 19494082 DOI: 10.1128/jcm.00826-09] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Isolates from Campylobacter jejuni-infected patients were collected and fresh poultry meat from retail sources was sampled during the same time period and within the same geographical area. The patients were interviewed about exposure to known risk factors, and a significant correlation between the presence of a poultry subtype in patients and the consumption of fresh poultry meat was observed.
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Denno DM, Keene WE, Hutter CM, Koepsell JK, Patnode M, Flodin-Hursh D, Stewart LK, Duchin JS, Rasmussen L, Jones R, Tarr PI. Tri-county comprehensive assessment of risk factors for sporadic reportable bacterial enteric infection in children. J Infect Dis 2009; 199:467-76. [PMID: 19281302 DOI: 10.1086/596555] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND The aim of this study was to determine risk factors for childhood sporadic reportable enteric infection (REI) caused by bacteria, specifically Campylobacter, Salmonella, Escherichia coli O157, or Shigella (REI-B). METHODS Matched case-control study. Case patients aged <19 years who were reported to 3 Washington State county health departments and matched control subjects were interviewed from November 2003-November 2005. Matched odds ratios (ORs) were calculated by using conditional logistic regression. Population attributable risk percentages were calculated for exposures associated with infection. RESULTS Two hundred ninety-six case patients were matched to 580 control subjects. Aquatic recreation was the most important factor associated with all REI-Bs studied (beach water exposure [OR for Salmonella infection, 28.3 {CI, 7.2-112.2}; OR for Shigella infection, 14.5 {CI 1.5-141.0} or any recreational water exposure [OR for Campylobacter infection, 2.7 {CI, 1.5-4.8}; OR for Escherichia coli O157 infection, 7.4 {CI, 2.1-26.1}]). Suboptimal kitchen hygiene after preparation of raw meat or chicken (OR, 7.1 [CI, 2.1-24.1]) and consumption of food from restaurants were additional risks for Campylobacter infection. Infection with Salmonella was associated with the use of private wells as sources of drinking water (OR, 6.5 [CI, 1.4-29.7]), and the use of residential septic systems was a risk for both Salmonella (OR, 3.2 [CI, 1.3-7.8]) and E. coli (OR, 5.7 [CI, 1.2-27.2]) O157 infection. CONCLUSIONS Overall, non-food exposures were as important as food-related exposures with regard to their contributions to the proportion of cases. Infection prevention efforts should address kitchen hygiene practices and non-food exposures, such as recreational water exposure, in addition to food-consumption risks.
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Affiliation(s)
- Donna M Denno
- Department of Pediatrics and Global Health, University of Washington, Public Health-Seattle and King County, Seattle, Washington, USA
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DeBess EE, Pippert E, Angulo FJ, Cieslak PR. Food Handler Assessment in Oregon. Foodborne Pathog Dis 2009; 6:329-35. [DOI: 10.1089/fpd.2008.0102] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Emilio E. DeBess
- Public Health Division, Oregon Department of Human Services, Portland, Oregon
| | - Eric Pippert
- Public Health Division, Oregon Department of Human Services, Portland, Oregon
| | - Frederick J. Angulo
- Enteric Diseases Epidemiology Branch, Division of Foodborne, Bacterial and Mycotic Diseases, National Center for Zoonotic, Vectorborne, and Enteric Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Paul R. Cieslak
- Public Health Division, Oregon Department of Human Services, Portland, Oregon
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