13th International Symposium on Aeromonas and Plesiomonas in Wroclaw

June 21-23, 2023, Wroclaw, Poland


The Interim Agenda is now available. It will be finalized later in 2023.


The complete list of invited speakers will be announced shortly.


 The Organising Committee cordially invites you to participate in the 13th International Symposium on Aeromonas and Plesiomonas which will be held at the Hirszfeld Institute of Immunology and Experimental Therapy in Wroclaw, Poland.

Special Issue of Microorganisms

The Organizers are glad to announce that a Special Issue of Microorganisms will be dedicated to this Symposium. The Special Issue will be guest edited by dr Troy Skwor & dr Marta Kaszowska. Deadline for manuscript submission is Sep 30, 2023. Participants are welcome to contribute to this Special Issue “Aeromonas and Plesiomonas”. Both regular and review articles will be accepted.

and Plesiomonas

In the years since the 1st International Symposium on Aeromonas and Plesiomonas on September 5-6, 1986 in Manchester, England, the scientific community has seen significant increase in the number of species identified and included in Aeromonas and Plesiomonas genera. The perception of these bacteria has evolved from a causative agent of important fish diseases and opportunistic human infections to the status of “emerging” pathogens among humans. The evidence for Aeromonas species as a credible cause of diarrhea with a severe impact on pediatric and geriatric populations has been steadily mounting. Plesiomonas is a relatively new genus with many aspects of structural and biological features still to be uncovered. It comprises P. shigelloides bacteria that account for over 10% of all acute travelers’ diarrhea cases and have been implicated in outbreaks of gastroenteritis. The scientific sessions during the ISAP2023 in Wroclaw will cover all aspects of Aeromonas and Plesiomonas: molecular biology, phylogeny, evolution, taxonomy, ecology, virulence factors and pathogenesis.

Our Speakers

Maria Jose Figueras

Professor at the Department of Basic Health Science, School of Medicine and Health Sciences, IISPV, University Rovira i Virgili, Reus, Spain

Juan M. Tomás

Professor at the Department of Microbiology, University of Barcelona, Spain

Po-Lin Chen

Professor at the Department of Infectious Disease, National Cheng Kung University Hospital, Taiwan

Ashok Chopra

Professor at the University of Texas Medical Branch, Galvestone, USA

Antonio Martínez-Murcia

Professor at the Universidad Miguel Hernández and Genetic PCR Solutions™, Orihuela, Alicante, Spain

Troy Skwor

Associate Professor at the Department of Biomedical Sciences,
College of Health Sciences
University of Wisconsin Milwaukee
Milwaukee, WI USA

Tomasz Niedziela

Associate Professor at the Department of Immunochemistry, Hirszfeld Institute of Immunology & Experimental Therapy, Wrocław, Poland


Final Program

Date Time Event
June 21, 2023
10:00 – 11:00 Registration
11:00 – 11:20 Welcome – Opening of the ISAP2023

Session I – presided by Jolanta Łukasiewicz

11:20 – 12:20 Keynote Speaker: Maria Jose Figueras
lessons learned after working on the taxonomy and epidemiology of
aeromonas for 25 years
12:20 – 12:40 O1
Ana Fernandez-Bravo
description and pathogenic characterization of two new species,
aeromonas enterica and aeromonas intestinalis, isolated from clinical samples
12:40 – 13:00 O2
Brandon Schultz
effect of sub-inhibitory wastewater stressors on mutation frequencies between clinically relevant aeromonas species
13:00 – 13:10 FC1
Sandrine Baron
study of the diversity of strains of aeromonas salmonicida isolated in the fish farming context in france
Maria Jose Figueras
epidemiology and genotyping of 438 clinical isolates of
aeromonas recovered from 74 cases of gastroenteritis
13:10 – 14:00 Lunch & Coffee

Session II – presided by Juan M. Tomas

14:00 – 14:45 Invited Speaker: Troy Skwor
identifying the drivers of antimicrobial resistance though the “eyes” of
aeromonas: a global one health perspective
14:45 – 15:05 O3
Mark R. Liles
a global survey and disease control of hypervirulent aeromonas hydrophila in fish
15:05 – 15:25 O4
Sandrine Baron
antimicrobial susceptibility of isolates of aeromonas spp. collected in a french river impacted by terrestrial and aquatic farming activities: a 17 months following up
15:25 – 15:45 O5
Marta Kaszowska & Sandrine Baron
structural diversity among
aeromonas salmonicida o-polysaccharides isolated from ill and healthy fish as an epidemiological tool
15:45 – 16:00 FC3
Luis Uriel Gonzalez-Avila
in silico analysis of aeromonas mcr proteins
Pierre-Etienne Marcoux
interaction of pasa5 and pasa8 plasmids in aeromonas salmonicida subspecies salmonicida
Sandrine Baron
improvement of maldi-tof for the identification of aeromonas salmonicida and aeromonas bestiarum: two important fish pathogen
16:00 -18:00 Welcome Reception
June 22, 2023

Session III – presided by Po-Lin Chen

10:00 – 11:00 Keynote Speaker: Juan M. Tomas
plesiomonas shigelloides a unique bacterium?
11:00 – 11:20 O6
Sandrine Baron
detection and antimicrobial suspectibility of plesiomonas shigelloides in french river
11:20 – 11:40 O7
Anna Maciejewska
structural studies of plesiomonas shigelloides cnctc 70/89 lipopolysaccharide
11:40 – 12:00 Coffee Break

Session IV -presided by Troy Skwor

12:00 – 12:45 Invited Speaker: Tomasz Niedziela
chemotyping of bacterial glycans using nmr spectroscopy. high-resolution magic angle spinning nmr in the analysis of plesiomonas shigelloides o-antigens
12:45 – 13:05 O8
Wojciech Jachymek
immunochemical studies of plesiomonas shigelloides cnctc 5112 lipopolysaccharide
13:05 – 13:20 FC6
Jolanta Lukasiewicz
structure of the lipopolysaccharide o antigen of plesiomonas shigelloides o82 (strain cnctc 5119)
Sabina Koj
unusual structural elements of o-antigen from plesiomonas shigelloides o68 (strain cnctc 138/92) investigated by hr-mas nmr spectroscopy
Karolina Ucieklak
structure of the core oligosaccharide of plesiomonas shigelloides serotype o68. can we identify the “minimal common structure” among plesiomonas cores?
13:20 – 14:20 Lunch & Coffee
16:15 – 18:15 Guided Tour to the city of Wrocław
June 23, 2023

Session V – presided by Maria Jose Figueras

10:00 – 11:00 Keynote Speaker: Po-Lin Chen
review of aeromonas dhakensis: clinical infections and pathogenesis
11:00 – 11:45 Invited Speaker: Antonio Martínez-Murcia Online presentation
after thirty years of applying phylogenetic analysis to aeromonas taxonomy, the paradigm persists: how distant is distant? (or how close is close)
11:45 – 12:05 O9
Orr H. Shapiro
beagle in a fish pond: insights into the evolution of the psychrophilic fish pathogen aeromonas salmonicida following introduction to a mediterranean climate
12:05 – 12:25 FC9
Brooke Bojar
antibiotic resistance and virulence profiles of aeromonas in clinical, beach, and post-chlorinated wastewater isolates in milwaukee, wisconsin, usa
Andres Saldana-Padilla
comparative genomics in shiga-type toxin producing strains of
aeromonas spp.
Roberto M. Guerra
repurposing of fenofibrate as therapeutic alternative for aeromonas infection
Roger O. Medina de la Cruz
the crispr-cas system in strains of aeromonas: an in silico analysis
12:25 – 13:00 Poster Session
13:00 – 14:00 Lunch & Coffee

Session VI – presided by Tomasz Niedziela

14:00 – 14:45 Invited Speaker: Ashok ChopraOnline presentation
Prevalence of Aeromonas in patients from Gulf coast area: In vivo expression of virulence genes from fatal cases
14:45 – 15:05 O10
Abigail Perez-Valdespino
aeromonas sp. genomospecie paramedia bearing a class 4 chromosomal integron isolated from human feaces
15:05 – 15:25 O11
Jorge Erick Otero-Olarra
horizontal gene transfer in aeromonas species
15:25 – 15:50 Closing of the ISAP2023
18:00 – 21:00 Gala Dinner
June24, 2023
9:00 – 17:00 Optional – Extra to the Symposium program – a day trip to Książ Castle

Types of Contribution

Keynote Speaker: 60 minutes (including 5-10 minutes for Q&A)
Invited Speaker:  45 minutes (including 5 minutes for for Q&A)
Oral Communication (O): 20 minutes (including 5 minutes for for Q&A)
Flash Communication (FC): a short presentation (5 minutes,  3 slides max.)  of poster data
(questions to be saved for the poster session)

Social Program and Attractions


Książ Castle

On Saturday, June 24th, we invite you for a one-day trip to the Książ Castle, the third largest castle in Poland & one of the most impressive locations.

Available at extra cost of 60 € – includes transport, tickets, tour guide & lunch.

The City tour of Wrocław

The guided city tour of the old town and the riverside of Wrocław have been arranged for Thursday afternoon (June 22nd)

All participants are invited at no additional cost.

Symposium Gala Dinner

Friday evening reception & dinner on the Rusałka ship. The evening meal will be served during a cruise on the Odra river along the Old Town waterfront.

All participants are invited at no additional cost.

Meet the team

Hirszfeld Institute of Immunology & Experimental Therapy

Hirszfeld Institute of Immunology and Experimental Therapy of the Polish Academy of Sciences excels in research concerned with immune system development and function comprising the biological chemistry and genetics of macromolecules and nanostructures involved in immunological processes related to proteins, glycans, glycoconjugates and ligand-receptor interactions. Development of antibacterial vaccines with defined immunochemical properties and protective activity is among its premium research topics. Integrated Laboratory of Experimental Oncology and Innovative Technologies pursues investigation on biological activity of drugs, their metabolites and biotransformation leading to innovative technologies. The Phage Therapy Unit carries out an experimental phage therapy of patients with antibiotic resistant infections. The Hirszfeld Institute combines premium research and education with best clinical practice. The extensive PCM collection of bacteria complements the expertise and infrastructure.
Institute was established in 1952 by the Polish Academy of Sciences and professor Ludwik Hirszfeld, famous Polish immunologist and microbiologist, was the founding father and the first director.

Organizing Committee

Marta Kaszowska, Jolanta Łukasiewicz, Anna Maciejewska, Czesław Ługowski, Tomasz Niedziela, Wojciech Jachymek, Sabina Koj, Karolina Ucieklak, Daria Artyszuk, Paula Czyszczoń, Sylwia Wojtyś-Tekiel & Emilia Strąk-Balicka

Laboratory of Microbial Immunochemistry & Vaccines, Hirszfeld Institute of Immunology & Experimental Therapy, Polish Academy of Sciences

Scientific Committee

Prof. Steve Charette, Université Laval (Canada)
Prof. Ashok Chopra, University of Texas Medical Branch (USA)
Prof. Maria Jose Figueras, University Rovira i Virgili (Spain)
Prof. Jolanta Lukasiewicz, Hirszfeld Institute  (Poland)
Prof. Antonio Martinez-Murcia, Universidad Miguel Hernández (Spain)

Featured Sponsors and Partners

Get in Touch!

If you have any questions or would like to contact the organizers  regarding conference program, registration or  payments then please fill in the form below and we will respond as soon as possible.

Event’s Coordinator

Marta Kaszowska

(+48) 71 370 99 27

Official Organiser

Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences

ul. Rudolfa Weigla 12, PL-53-114 Wroclaw

Contact us on all issues regarding ISAP2023

(+48) 71 337 11 72