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"Entamoeba, the intestinal ecosystem, and infection"

Registration is open!
October 24th to 28th, 2023
Mérida, Yucatán


Dear Colleagues:
It is an honor to invite you again to our next XX International Seminar on Amebiasis 2023 during October 24th to 28th, in this occasion at the city of Mérida, Yucatán in Mexico.
Mérida was founded on January 6th in 1542 on top of the Mayan vestiges by Francisco de Montejo, who named it "Mérida the ancient pre-Hispanic city". Mérida reflects its ancestral heritage and combines it with a growing modernity, making this city a unique place to enjoy.
After the interruption of our seminar due to the COVID-19 pandemic, we want to offer you an inclusive, updated academic program of excellence, dedicated to the scientific community in the study of amoebiasis, as well as the study of other protists of importance to humans and their related areas, come together to disseminate, discuss, and share scientific knowledge within their area.
Our academic program will consist of master class conferences given by national and international colleagues who are leaders in their field, specialized conferences, oral presentations and poster sessions, which will cover different topics. We look forward to your enthusiastic participation and together, researchers, academics and students, to promote the advances of scientific knowledge in the field of amebiasis.
We invite you to be part of this experience!
Organizing Committee

Hotel Venue


Located in the heart of the city, The Hyatt Regency, is a luxury hotel in Mérida, Yucatán. Is at a key point where the commercial area and the tourist area of ​​the city converge, just a few steps from the emblematic Paseo de Montejo.

The beautiful interiors of this majestic hotel are complemented by personalized service, with a safe and clean environment, high technology, and modern luxury to ensure a pleasant stay. Enjoy a traditional Yucatecan and international buffet breakfast at Peregrina Bistro, Hyatt Regency's main Restaurant.

Hyatt Regency Merida

+52 999 942 1234


Av. Colon esq Calle 60, a 100 metros del Paseo Montejo, Merida, Mexico, 97000

  • Free Internet Access
  • On-Site Restaurant
  • Room Service
  • Fitness Center
  • Pool
  • Pet Friendly
  • Digital Check-In
  • Business Services
  • Laundry
  • Concierge
  • Meeting Facilities

Rates from October 24th to 28th, 2023

Price per person in room:

Type of room Per four nights
Single room $12,958.72 MX
Double room $7,766.72 MX

Packages include:
  • Accommodation
  • Breakfast
  • Lunch: buffet only for 3 days (Wednesday, Thursday, and Friday) from 13:30 to 17:00 hrs. Does not include drinks
  • Taxes and tips for bellboys, chambermaids and waiters
  • Parking courtesy for hotel guest's reservation

Additional services are not included in the seminar package
The package will be available until July 30th, after this date, it will be subject to hotel availability. Important note: The Organizing Committee gives you the warmest welcome to the XX International Seminar on Amebiasis 2023 and invites all attendees to make their reservation for the entire event at the host hotel, to maintain the special rates in the package offer which will help to have a better interaction among all attendance.

The hotel offers the same rates, per room, per night in single and double occupancy, for the weekend before the congress: Saturday 21th, Sunday 22th, and Monday 23th October, as well as the weekend after the event: Saturday 28th and Sunday October 29th.


The total payment of the stay must be covered upon arrival.

The payment of the hotel reservation will be made by leaving a card as a guarantee or by bank deposit or transfer.

When making your reservation, please mention that you are attending the Amebiasis Seminar Entrance and exit of the room

Check-in: from 15:00 hrs.
Check-out: at 12:00 hrs.

Reservation link:

At the time of booking with the key to the event, the charge for lunch will not be observed, this charge will be made at the upon arrival.

https://www.hyatt.com/en-US/hotel/mexico/hyatt-regency-merida/ -->

Doubts and clarifications:

Academic Program

Topic categories

I. Interplay of Entamoeba with bacteria and other intestinal parasites

  • Biology and ecology of Entamoeba species
  • Evolution of Entamoeba species and human associations
  • Entamoeba and other intestinal pathogen co-infections
  • Association between eukaryome and intestinal microbiome

II. Cellular and molecular biology of Entamoebae "in memoriam of Alfonso Olivos, PhD"
  • Genetic and genomic advanced studies of Entamoeba species
  • Regulation of gene expression of Entamoeba species
  • Epigenetics regulation during the cell cycle of Entamoebae
  • Organelles, membrane and vesicles traffic, stress, and redox responses
  • Cytoskeleton: phagocytosis and amoeba motility

III. Entamoeba histolytica and host interplay in the onset of amoebiasis "in memoriam of Ruy Pérez Tamayo, PhD"
  • Virulence factors determining changes from asymptomatic to symptomatic phenotype
  • Genetic diversity of Entamoeba histolytica and disease outcome of strains isolated from asymptomatic or symptomatic patients
  • Infection models in the study of Entamoeba histolytica and amoebiasis
  • Cytopathic effect and tissue destruction
  • Human host defences at the epithelium and cell-mediated innate immunity responses against E. histolytica

IV. Diagnosis and treatment of amoebiasis
  • Epidemiology, molecular epidemiology, and public health of amebiasis
  • News developments in the setting of anti-amoebiasis vaccines
  • Clinical advanced in the treatment of Entamoeba histolytica
  • Drug screening and discovery of new therapies against amoebiasis

V. Free living amoebae and other protist that affect the human "Special topic in memoriam of Mineko Shibayama PhD"
  • Free living naked amoebae pathogens
  • Dientamoeba fragilis
  • Giardia infection
  • Cryptosporidium infection
  • Blastocystis infection
  • Trichomonas infection

We appreciate your upcoming participation


Category Until August 14th After August 14th
Professor / Researcher 400 USD 450 USD
Student 200 USD 250 USD

All congress attendees must cover their registration fee. Only registered attendees will be able to have access to the sessions and we'll be able to count on the material and the memories of the Seminar, as well as all the events: welcome cocktail, coffee break and welfare gala dinner.

IMPORTANT NOTE: Once you covered the registration fee, you must send your receipts to seminario.amibiasis@gmail.com in order to complete your registration.

We recommend that you use .PDF or .JPG formats to send your receipts and name your files as:
"first surname_name"

Grades: There will be no refunds on registrations and cash payments will not be accepted.

Doubts and clarifications:

Scholarships for Students

Based on the resources obtained in the seminar, a limited number of scholarships will be awarded to students for lodging expenses at the package of the host hotel, in accordance with the following guidelines:

  • The student must have registered at the XX International Seminar on Amebiasis.
  • Be the first author of a submitted and registered work, as well as submit their application no later than July 16, 2023.

Scholarship Application

Send a signed request letter to our e-mail (seminario.amibiasis@gmail.com), on the letterhead of your academic institution, addressed to the 'Organizing Committee', with the approval of the tutor (lab leader or group leader), specifying that the student does not has financial support from any postgraduate program or institution, for lodging, to attend the congress.

From the confirmation of the scholarship and up to 5 days after it, students must send a proof of studies and a copy of their current student ID to the Seminar email address:

Important notes:
Only one student per laboratory or work group will be supported.
The scholarships is non-transferable.

Abstract Submission

The summary of your presentation must meet the following requirements:

  • Document size: Letter
  • Maximum one page
  • Margins: Top and bottom 2.5 cm - Left and Right 3.0 cm
  • Single space between lines (1.0)
  • Title: Font size 16 Arial bold
  • Authors: Font size 12 Arial regular
    Presenting author should be marked by an asterisk and number (eg.Cecilia Ximenez 1*)
  • If the co-authors belong to different institutions, their names should be marked only
  • Institutions: Font size 10 Arial regular
  • Body text: Font size 12 Arial regular
The text should include:
  • Relevant background
  • Main objective(s)
  • Methodology
  • Results obtained
  • A brief discussion
  • Names of microorganisms (genus and species) should be in italics
  • Do not include references
  • The abstract MUST BE IN .PDF FORMAT, other format will be rejected!
  • Important: The committee cannot edit your abstract.

NOTE: Send your abstract in PDF format to email: seminario.amibiasis@gmail.com
The abstract will be sent to the academic committee once your registration has been completed and your payment is verified.

We appreciate your upcoming participation

Doubts and clarifications:

Important Dates

The abstract must meet the indicated requirements:

  • Registration opening: May 16th, 2023
  • Abstract submission opening: May 16th, 2023
  • Abstract submission deadline: September 02nd, 2023
  • Early payment of registrations: from May 16th to August 14th, 2023
  • Beginning of full registratition payment: After August 14th, 2023
  • Start of the Seminar: October 24th, 2023
  • End of the Seminar: October 28th, 2023

Poster Submission

The Poster Design must meet the indicated requirements:

  • Poster dimension must be 90 cm width by 120 long
  • The title should be readable to two meters away
  • Author and institution as follow: Julien Santi-Roca*, Nancy Guillen Unite Biologic Cellulaire du Parasitism, INSERM U786, Institute Pasteur, Paris, France
  • Presenting author should be marked by an asterisk *

Poster Sections

  • Readable Abstract
  • Short antecedents
  • Objective and/or Hypothesis
  • Methodology
  • Images and graphics (optional)
  • Results and Discussion
  • Conclusions
  • Acknowledgements are allowed

Oral presentations

  • Oral presentations will be selected by the organizing committee from all the abstracts received and the choice of the type of presentation chosen by the main author
  • Oral presentations will be in English and the text on the slides must also be in English
  • Presentations should be limited to 15 minutes
  • At the end of each block of exhibitions, we will have a joint question session, lasting 30 min.


Information of XX International Seminar on Amebiasis 2023
PhD. Cecilia Ximénez García
Head of the Immunology Laboratory, Experimental Medicine Research Unit
Faculty of Medicine, National Autonomous University of Mexico (UNAM)

Phone: +52 55 5623-2666
Phone: +52 55 5623-2671
e-mail: seminario.amibiasis@gmail.com


Event Registration Form

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• EDIFICIO 'H' Planta Baja • Teléfonos: 55 5623-2299 y 55 5623-2287 •