Aims and objectives

The ESCMID Study Group for Mycoplasma and Chlamydia Infections (ESGMAC) gathers physicians, veterinarians, microbiologists, and scientists. Together, they are dedicated to improving the understanding of clinical presentation and epidemiology (including antimicrobial resistance) of Mycoplasma, Ureaplasma, and Chlamydiales infections in both humans and animals. Their collaborative mission aims to:

  • Define the clinical presentation of infections from various Mycoplasma and Ureaplasma genus, as well as those classified within the Chlamydiae phylum, both in humans and in animals
  • Study the epidemiology of Mycoplasma and Chlamydiae infections and the transmission modes of new chlamydia-related bacteria
  • Improve diagnostic tools for challenging-to-culture Mycoplasma and Chlamydiae, which are better detected by molecular assays
  • Develop genomics capacity to better understand the biology of Chlamydiae and Mycoplasma, while providing sequences needed for molecular epidemiology
  • Identify new drug targets and refine treatment protocols and duration for the large diversity of infections due to Chlamydiae and Mycoplasma, from very common and easy-to-treat infections like chlamydial urethritis to rare but serious cases such as Mycoplasma hominis endocarditis
  • Understand the evolution of Chlamydiae phylum’s mollicutes
  • Engage with active collaboration with relevant international scientific societies such as the International Organization for Mycoplasmology (IOM), the European Society for Chlamydia research (ESCR) and the European Society for Chlamydioses, Coxiellosis, Anaplasmosis, Rickettsioses and Bartonellosis (ESCCAR)

Activities and resources

ESGMAC Mycoplasma pneumoniae Surveillance (MAPS) study

Background

The aim of the ESGMAC MAPS study was to prospectively collect M. pneumoniae detection data from around the world following the COVID-19 pandemic and, where possible, to retain isolates and/or DNA from local sites for future typing to monitor and characterise the re-emergence of M. pneumoniae from a global perspective.

The ESGMAC MAPS study was able to observe the beginning of the re-emergence of M. pneumoniae infections  in the second half of 2023 right before the global occurrence of pneumonia outbreaks and timely alert clinicians via monthly website updates. This allowed a prompt response with adequate management.


News

Our new publication reports the global spatiotemporal dynamics of the substantial M. pneumoniae re-emergence in late 2023 with data from 29 countries. To our knowledge, this study represents the largest combined dataset for M. pneumoniae detections. Additionally, this work provides detail of patient outcomes for several sites, information on macrolide resistance across the globe, and answers to why a substantial delay was seen in the re-emergence of M. pneumoniae compared with the re-emergence of other respiratory pathogens.

Global spatiotemporal dynamics of Mycoplasma pneumoniae re-emergence after COVID-19 pandemic restrictions: an epidemiological and transmission modelling study - ScienceDirect


Ongoing projects

  • ESGMAC MAPS study update:

    Re-emergence and beyond (2023-2025)

    Data collection in progress, planned publication in summer 2025

  • ESGMAC MAPS subtyping study (ESCMID Study Group Collaboration Grant: ESGMAC, ESGEM, ESGMD):

    Developing a novel method for assessing global genetic diversity and molecular surveillance of M. pneumoniae during its re-emergence after the COVID-19 pandemic and beyond

    In progress


Contact information

If you are interested in contributing to this ongoing surveillance project, or would like to find out more, please contact either Patrick Meyer Sauteur (Patrick.MeyerSauteur[at]kispi.uzh.ch) or Mike Beeton (mbeeton[at]cardiffmet.ac.uk).

We would like to take this opportunity to thank all those who have contributed data so far and we are grateful for the on-going collaborations on this project.


Previous publications by the ESGMAC MAPS study

Meyer Sauteur PM, Chalker VJ, Berger C, Nir-Paz R, Beeton ML; ESGMAC and the ESGMAC–MyCOVID study group. Mycoplasma pneumoniae beyond the COVID-19 pandemic: where is it? Lancet Microbe. 2022 Dec;3(12):e897

Go to publication

Meyer Sauteur PM, Beeton ML; ESGMAC the ESGMAC MAPS study group. Mycoplasma pneumoniae: gone forever? Lancet Microbe. 2023 Oct;4(10):e763

Go to publication

Meyer Sauteur PM, Beeton ML; European Society of Clinical Microbiology and Infectious Diseases (ESCMID) Study Group for Mycoplasma and Chlamydia Infections (ESGMAC), and the ESGMAC Mycoplasma pneumoniae Surveillance (MAPS) study group. Mycoplasma pneumoniae: delayed re-emergence after COVID-19 pandemic restrictions. Lancet Microbe. 2024 Feb;5(2):e100-e101. 

Go to publication

Meyer Sauteur PM, Beeton ML; European Society of Clinical Microbiology and Infectious Diseases (ESCMID) Study Group for Mycoplasma and Chlamydia Infections (ESGMAC), and the ESGMAC Mycoplasma pneumoniae Surveillance (MAPS) study group. Pneumonia outbreaks due to re-emergence of Mycoplasma pneumoniae. Lancet Microbe. 2024 Jun;5(6):e514. 

Go to publication

ESGMAC MAPS study group. Global spatiotemporal dynamics of Mycoplasma pneumoniae re-emergence after COVID-19 pandemic restrictions: an epidemiological and transmission modelling study. Lancet Microbe. 2025 Feb 27:101019

Go to publication

Meyer Sauteur PM, Beeton ML, Uldum SA, Bossuyt N, Vermeulen M, Loens K, Pereyre S, Bébéar C, Keše D, Day J, Afshar B, Chalker VJ, Greub G, Nir-Paz R, Dumke R; ESGMAC–MyCOVID Study Team. Mycoplasma pneumoniae detections before and during the COVID-19 pandemic: results of a global survey, 2017 to 2021. Euro Surveill. 2022 May;27(19):2100746

Go to publication

ESGMAC Newsletter, March 2025

Download


ESGMAC Newsletter, February 2025

Download


ESGMAC Newsletter, October 2024

Download


ESGMAC Newsletter, August 2024

Download


ESGMAC Newsletter, June 2024

Download


ESGMAC Newsletter, March 2024

Download

Mycoplasma pneumoniae detections before and during the COVID-19 pandemic: results of a global survey, 2017 to 2021. 

Meyer Sauteur PM, Beeton ML, Uldum SA, Bossuyt N, Vermeulen M, Loens K, Pereyre S, Bébéar C, Keše D, Day J, Afshar B, Chalker VJ, Greub G, Nir-Paz R, Dumke R; ESGMAC–MyCOVID Study Team. Euro Surveill. 2022 May;27(19):2100746

Go to publication


Mycoplasma pneumoniae: not a typical respiratory pathogen. 

Rowlands RS, Meyer Sauteur PM, Beeton ML, On Behalf Of The Escmid Study Group For Mycoplasma And Chlamydia Infections Esgmac. J Med Microbiol. 2024 Oct;73(10):001910

Go to publication


Pneumonia outbreaks due to re-emergence of Mycoplasma pneumoniae

Meyer Sauteur PM, Beeton ML; European Society of Clinical Microbiology and Infectious Diseases (ESCMID) Study Group for Mycoplasma and Chlamydia Infections (ESGMAC), and the ESGMAC Mycoplasma pneumoniae Surveillance (MAPS) study group. Lancet Microbe. 2024 Jun;5(6):e514

Go to publication


Mycoplasma pneumoniae: delayed re-emergence after COVID-19 pandemic restrictions.

Meyer Sauteur PM, Beeton ML for the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) Study Group for Mycoplasma and Chlamydia Infections (ESGMAC), and the ESGMAC Mycoplasma pneumoniae Surveillance (MAPS) study group. Lancet Microbe. 2024;5(2):e100–e101.

Go to publication


Mycoplasma pneumoniae: gone forever?

Meyer Sauteur PM, Beeton ML for the ESGMAC the ESGMAC MAPS study group. Lancet Microbe. 2023;4(10):e763.

Go to publication

Legionella pneumophila, Chlamydia pneumoniae and Mycoplasma pneumoniae: atypical pneumonia and extrapulmonary infection

11 June 2025, 11:30 -13:30 CET

Go to webinar


Early Career Mycoplasma and Chlamydia Researcher Conference 2025 (ECMCR 2025) organised by ESGMAC

19 February 2025, 13:00 -16:30 CET

Go to webinar


ESGMAC: Update on diagnostics for Mycoplasma and Chlamydia infections

15 January 2025, 16:00 CET

Go to webinar


ESGMAC: Basic aspects of Chlamydia and Mollicutes

6 December 2024, 16:00 CET

Go to webinar


ESGMAC: Latest insights in Chlamydia infections research

2 October 2024

Go to webinar


ESGMAC: Debate - Screening for chlamydia in asymptomatic people is not a sound public health strategy

12 June 2024

Go to webinar


ECMCR 2024

6 March 2024

Go to webinar


Research and clinical aspects of Chlamydiales and Mycoplasma

24 January 2024

Go to webinar


Update on Chlamydia trachomatis

30 March 2023

Go to webinar


ESGMAC webinar on zoonotic Chlamydia and Chlamydia like bacteria

18 October 2023

Go to webinar


Research and clinical aspects of Chlamydiales and Mycoplasma

13 December 2023

Go to webinar

Executive Committee

  Gilbert Greub

Gilbert Greub

Chairperson
University Hospital Centre (CHUV). Institute of Microbiology.
Mollie-Margot, Switzerland
  Mirja Puolakkainen

Mirja Puolakkainen

Secretary
University of Helsinki and Helsinki University Hospital. Virology.
Helsinki, Finland
  Barbara Van Der Pol

Barbara Van Der Pol

Treasurer
University of Alabama at Birmingham. Infectious Diseases.
Birmingham, United States
  Sylvia Bruisten

Sylvia Bruisten

Education Officer
Public Health Service GGD Amsterdam. Infectious Diseases.
Amsterdam, Netherlands
  Jorgen Skov Jensen

Jorgen Skov Jensen

Science Officer
Statens Serum Institut.
Copenhagen, Denmark

Contact

If you have questions or comments for our study group, we warmly invite you to contact us!

Contact form