Chro2017 - 10-14 September 2017 - Nantes (France)
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International Workshop on Campylobacter, Helicobacter and related organism

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Santé publique France
Institut Pasteur
CHU Bordeaux

Full Programme

Sunday, September 10th - evening

17.00 - 21.00
Welcome cocktail ceremony

Monday, September 11th

Welcome and registration


Opening ceremony



Plenary session « Genomic and Evolution 1 »

 Chairpersons: SHEPPARD Sam, United Kingdom and DE REUSE Hilde, France

Evolution of Helicobacter and gastric adaptation
DE REUSE Hilde, France


Oral communications:

Genome-wide identification of cancer associated genetic elements in Helicobacter pylori
BERTHENET Elvire, United Kingdom


A fine genomic population structure of Helicobacter pylori in China reflects geography specific linages corresponding to historic East Asian migrations
ZHANG Jianzhong, China


Putting bacterial GWAS to the test: can we find the basis of host-association in Campylobacter jejuni?
JOHANSSON Håkan, Sweden


Whole genome sequencing of Campylobacter jejuni offers an opportunity for in depth investigation into phase variable genes
VRANCKX Katleen, Belgium


Morphological transformation of Helicobacter pylori upon expression of a small peptide by a type I toxin-antitoxin system
DE REUSE Hilde, France


Genome and methylome variability of cag pathogenicity island-carrying Helicobacter pylori during early human infection
SUERBAUM Sebastian, Germany


Coffee break and poster session







Parallel session « Immunology and Host response 1 »


Chairpersons: ETHELBERG Steen, Denmark and FERRERO Richard, Australia


FERRERO Richard, Australia


Oral communications:


Regulation of the LATS2/YAP/TAZ pathway during Helicobacter pylori induced gastric carcinogenesis
VARON Christine, France


Interleukin-18 mediates immune responses in Campylobacter jejuni infected gnotobiotic mice
HEIMESAAT Markus, Germany


Campylobacter jejuni induces autoimmune peripheral neuropathy via Siglec-1 and IL-4 axes in a mouse model of Guillain Barré Syndrome


Downregulation of USF1 transcription factors impacts p53 during Helicobacter pylori infection and exacerbates gastric carcinogenesis
TOUATI Eliette, France


Parallel session « Methods for Detection, Identification and Characterisation » 


Chairpersons: TABODOA Eduardo, Canada, RIVOAL Katell, France
and BESSEDE Emilie, France


Greater than the sum of its parts: Campylobacter surveillance in Canada
TABODOA Eduardo, Canada


Oral communications:


A core genome multi-locus sequence typing scheme for stable, comparative analyses of Campylobacter jejuni and C. coli human disease isolates
CODY Alison, United Kingdom


Comparison of nine selective agars for the detection of Campylobacter sp.
REPERANT Elisabeth, France


Evaluation of rapid immunochromatographic test detecting Campylobacter in human stools
BESSEDE Emilie, France


Detection of Campylobacter in water
FERRARI Sevinc, Sweden


Comparison of testing methodologies for enumerating levels of Campylobacter species from fresh whole raw chicken carcasses
JORGENSEN Frida, United Kingdom


Tea break




Parallel session « Poultry and non-poultry epidemiology and ecology of Campylobacter sp. »


 Chairpersons: DE ZUTTER Lieven, Belgium and DENIS Martine, FRANCE


Keynote: Campylobacter in animal”
DE ZUTTER Lieven, Belgium and DENIS Martine, France


Oral communications:
Studying Campylobacter jejuni in the chicken reservoir
GARAFOLO Giuliano, Italy


Molecular characterization of Campylobacter from the Canadian Poultry Baseline Survey
TABODOA Eduardo, Canada


Characterization of C. jejuni isolates from game birds in Finland
KOVANEN Sara, Finland


Diversity of Campylobacter lari in a One-Health context: Focus on shellfish, wild birds, surface water and human health risk
PENNY Christian, Luxembourg


A large survey on Campylobacter contamination in bovine production in France
RIVOAL Katell, France


Parallel session « Antibiotics and antimicrobial resistance »


Chairpersons: LEHOURS Philippe, France and  KEMPF Isabelle, France


Keynote: Antimicrobial resistance among Campylobacter sp. and Helicobacter pylori in France: the experience of the French National Reference Center
LEHOURS Philippe, France


Oral communications:


ST5136 is the largest vertically expanding UK wide clone of Campylobacter jejuni
LOPES Bruno, United Kingdom


Emerging antibiotic resistance in ruminant Campylobacter in the United States


Antimicrobial resistance in Helicobacter pylori – a 7 year perspective from Gastrointestinal Bacteria Reference Unit (GBRU), Public Health England
GODBOLE Gauri, United Kingdom


Targeting Campylobacter jejuni lytic transglycosylase for drug discovery

Campy versus Heli football match

Tuesday, September 12th


Plenary session « Pathogenicity and virulence factors »


Chairpersons: KOROLIK Victoria, Australia and MEGRAUD Francis, France




Role of chemosensory receptors in pathogenesis of Campylobacter jejuni
KOROLIK Victoria, Australia


Oral communications:


Nuclear remodeling in response to the cytolethal distending toxin: formation of nucleoplasmic reticulum
MENARD Armelle, France


Investigating Campylobacter jejuni interactions with endoplasmic reticulum in intestinal epithelial cells resulting in induction of the unfolded protein response
DI SARO Gianna, Italy


Identifying virulence factors that lead to abortion from zoonotic transmission and whole genome sequencing


Insights into Campylobacter jejuni colonization and enteritis using a novel infant rabbit model
REN Fangzhe, China


Gastric cancer-associated polymorphisms in the Helicobacter pylori type IV secretion system protein CagL: a potential biomarker for cancer risk
GORREL Rebecca, Australia


Helicobacter pylori expands and functionally activates a novel gastric stem cell population in a cag pathogenicity island-dependent manner


Coffee break and poster session






Parallel session « Control strategies for Campylobacter sp. »

Chairpersons: HOFSHAGEN Merete, Norway, VAN DER LOGT Peter, New Zealand
and CHEMALY Marianne, France

VAN DER LOGT Peter, New Zealand

Oral communications:

Relation between soiling of broilers and Campylobacter levels during the slaughtering process
KOENE Miriam, The Netherlands


Isolation and characterization of Campylobacter-specific bacteriophages to reduce colonization of animal hosts


A Campylobacter putative outer membrane protein induces protective immune responses against an experimental campylobacter infection in broilers
DORY Daniel, France


Identification of potential Twin Arginine Translocation (TAT) pathways inhibitors to control Campylobacter in poultry


The in vitro and in vivo effect of Carvacrol in preventing Campylobacter infection, colonisation and improve chicken broilers productivity
CORCIONIVOSCHI Nicolae, United Kingdom


Parallel session « Pathogenicity and virulence factors »

Chairpersons: GAYNOR Erin, Canada and MEGRAUD Francis, France


Keynote: A new screen for C. jejuni virulence factors identifies a novel iron acquisition system
GAYNOR Erin, Canada


Oral communications:

The Ornithine Decarboxylase inhibitor Difluoromethylornithine effectively reduces Helicobacter pylori virulence and induction of inflammation and carcinogenesis
SIERRA Carolina, USA


Further characterization of the ligand-binding properties of Helicobacter pylori sialic acid binding adhesin A (SabA)
CHANDRAPALA Dilini, Australia


Investigating the biogenesis of Campylobacter jejuni outer membrane vesicle production
DAVIES Cadi, United Kingdom


Exploring the role of Campylobacter coli GT42 enzymes on lipooligosaccharides biosynthesis
ROSSI Mirko, Finland


TNFα affects the internalization of Campylobacter jejuni into human intestinal cells
CAPPELIER Jean-Michel, France


Tea break


Plenary session- State-of-the-Art lecture

Microbial carcinogens within the context of H. pylori-induced Gastric Cancer
PEEK Richard (USA)


CHRO 2019 presentations

Wednesday, September 13th


Plenary session « Adaptation of Campylobacter sp. to environmental conditions »


Chairpersons: KELLY Dave, United Kingdom, HADDAD Nabila, France
and Odile TRESSE, France


Keynote: Introduction on adaptation strategies of Campylobacter
TRESSE Odile, France


Oral communications:
Poultry intestinal mucus modulates Campylobacter jejuni gene expression


RNAseq reveals complex response of Campylobacter jejuni to bile and the ovine gallbladder environment


Contributions of Phase Variation to Phage-Escape by Campylobacter jejuni
BAYLISS Chris, United kingdom


The phospholipidome of C. jejuni
WOSTEN Marc, The Netherlands


Membrane protein complexome of C. jejuni using 2D blue native/SDS-PAGE
GUERIN Alizée, France


Global control of Campylobacter jejuni biology by protein lysine acetylation
PUTTICK Thomas, United Kingdom



Coffee break



Parallel session « Adaptation of Campylobacter sp. to environmental conditions 2 »


Chairpersons: KELLY Dave, United Kingdom and Odile TRESSE, France


The periplasmic methionine sulfoxide reductase system of Campylobacter jejuni: A new player in oxidative stress defence
TAYLOR Aidan, United Kingdom


The Campylobacter jejuni oxidative stress regulator RrpB is associated with a genomic hypervariable region and altered oxidative stress resistance
GUNDOGDU Ozan, United Kingdom


Campylobacter jejuni FliW modulates CsrA regulation of flagellar and non-flagellar protein expression via protein-protein interaction


Differential survival of hyper-aerotolerant Campylobacter jejuni under different gas conditions
JEON Byeonghwa, Canada


Aerotolerant forms of a robust chicken colonising Campylobacter coli
CONNERTON Pippa, United Kingdom


Genomic and phenotypic characterization of C. jejuni water isolates
NILSSON Anna, Sweden


Parallel session «Immunology and Host response 2»


Chairpersons : ETHELBERG Steen, Denmark and FERRERO Richard, Australia


Oral communications:


Differential gene expression, signaling pathways, and upstream regulator analysis of acute Campylobacter jejuni enteritis in human colon mucosa
BUCKER Roland, Germany


Campylobacter jejuni infection of secondary abiotic mice lacking Nucleotide-Oligomerization-Domain-2
HEIMESAAT Markus, Germany


The role of Nod1 in targeting the immune response towards Helicobacter pylori in a genetic model of gastric carcinogenesis
SUAREZ Giovanni, United Kingdom


Helicobacter pylori modulates host cell responses by CagT4SS-dependent translocation of an intermediate metabolite of inner core LPS biosynthesis
JOSENHANS Christine, Germany


The role of gelatinases in Campylobacter jejuni infection of gnotobiotic mice
HEIMESAAT Markus, Germany


Transient Receptor Potential Melastatin 2, a calcium permeable channel, regulates macrophage apoptosis and polarization impacting gastric inflammation during Helicobacter pylori infection
ALGOOD Holly, United Kingdom



Open meeting of the « International subcommittee on the taxonomy of CHRO »




Plenary session « Emerging and Related Organisms species »

Chairpersons: HOUF Kurt , Belgium and CAPPELIER Jean Michel, France

Keynote: Evolutionary genomics of gastric Helicobacter species revealed interspecies admixture and recombination and evidence for niche adaptation
SMET Annemieke, Belgium

Oral communications:

The importance of C. rectus CiaB to host cell invasion and host response


Genome analysis reveals novel mobile genetic elements containing virulence-factor-like proteins in Campylobacter concisus strains isolated from patients with IBD
ZHANG Li, Australia


Identification of a novel Campylobacter species in the gut microbiome of harbour seal pups (Phoca vitulina): Campylobacter blaseri sp. nov.
ZOMER Aldert, The Netherlands


Arcobacter: novel taxa in New Zealand shellfish
ON Stephen, New Zealand


Isolation and characterisation of a new species of Campylobacter, C. hepaticus, responsible for Spotty Liver Disease in chickens
MOORE Robert J., Australia


The immunopathogenic potential of Arcobacter butzleri – pathogen or commensal?
HEIMESAAT Markus, Germany




Parallel session « Genomic and Evolution 2 »


Chairpersons: SHEPPARD Sam, United Kingdom and DE REUSE Hilde, France


Keynote :« Genomic and Evolution »
SHEPPARD Sam, United Kingdom


Oral communications:


Identification of genomic changes associated with invasiveness in Campylobacter jejuni
BIGGS Patrick, New Zealand


Genome-wide introgression and epistasis in agricultural Campylobacter coli
MERIC Guillaume, United Kingdom


Whole genome comparisons of Campylobacter fetus show benefit of WGS analysis for diagnostics


Recombination-driven adaptation of Campylobacter jejuni in cattle
MOURKAS Evangelos, United Kingdom




Parallel session «WGS and outbreak investigation»


Chairpersons: TAUXE Robert, USA and VAN CAUTERN Dieter, France


Oral communications:


Using genomics to investigate historic outbreaks of campylobacteriosis in the United Kingdom
BARKER Clare, United Kingdom


A human Campylobacter fetus outbreak identified through next generation sequencing
DIUM Brigitta, The Netherlands


Whole-genome sequencing of Campylobacter jejuni isolates from patients reveals numerous genetic clusters and possible epidemiologically linked cases
NIELSEN Eva Møller, Denmark


Swedish winter peaks of Campylobacter in humans and chicken are connected
SKARIN Hanna, Sweden


Ad hoc whole-genome MLST (wgMLST) analysis reveals multiple Campylobacter jejuni clones caused a massive waterborne outbreak in New Zealand in 2016
ZHANG Ji, New Zealand


Comparing the genomic epidemiology of two ‘slow-burn’ epidemics of Campylobacter jejuni in New Zealand
FRENCH Nigel, New Zealand




Parallel session «Tutti Campy»

Chairpersons: HADDAD Nabila, France and FEDERIGHI Michel, France

Oral communications:

Caecal microbiome modifications across age in a free-range poultry flock naturally-infected with Campylobacter
OCEJO Medelin, Spain


Comparing Québec Campylobacter jejuni from organically and conventionally raised chickens by whole genome sequencing: nothing special to be signalled.
THIBODEAU Alexandre, Canada


Transcriptomic and functional evaluation of the small RNA CjNC110 in Campylobacter jejuni


The effect of the timing of exposure to Campylobacter jejuni on the microbiome and inflammatory responses of broiler chickens
CONNESTON Pippa, United Kingdom


The river runs through: Understanding the human health risks of Campylobacter jejuni and Campylobacter coli in recreational waters.
BULACH Dieter, Australia


Developing a comparative conditional incidence to analyze relationships between local weather and Campylobacter infections in England and Wales
NICHOLS Gordon, United Kingdom

CHRO 2017 Gala dinner / Announcement of CHRO 2019 host

Thursday, September 14th


Plenary session « Epidemiology and Public  Health »


Chairpersons: TAUXE Robert, USA and VAN CAUTERN Dieter, France




Oral communications:


Significant Implication of Ruminants in Human campylobacteriosis in France: Three Genotyping Methods for a Same Trend in Source Attribution?
THEPAULT Amandine, France


How results of campylobacteriosis case-control/case-case studies vary depending on their design?
RAVEL Andre, Canada


Infection pressure by Campylobacter and associated risk factors: a seroepidemiological study in the Netherlands
MUGHINI-GRAS Lapo, The Netherlands


Changing diagnostic testing practices and impact on incidence of Campylobacter infection– Foodborne Diseases Active Surveillance Network, USA, 2012-2016


Risk factors for sporadic Campylobacter infections in Denmark: a case-control study in children and young adults
ETHELBERG Steen, Denmark


A combined case-control and molecular source attribution study of human Campylobacter infections in Germany, 2011-2014
ROSNER Bettina, Germany

Closing ceremony and passing of the CHRO torch



Chro2017 - 2016 - Conception : Wanerys - Mention - Contact