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Microorganisms
Special Issues
Chlamydiae and Chlamydia-Like Infections
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Chlamydiae and Chlamydia-Like Infections

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Medical Microbiology".

Deadline for manuscript submissions: 15 June 2024 | Viewed by 761

Special Issue Editors

Prof. Dr. Servaas A. Morré

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Guest Editor
Institute for Public Health Genomics (IPHG), Department of Genetics and Cell Biology, Research Institute GROW, Faculty of Health, Medicine & Life Sciences, University of Maastricht, 4-6, 6211 LK Maastricht, The Netherlands
Interests: epidemiology; diagnostics; immunogenetics; infectious diseases; valorization and translation; Chlamydia trachomatis
Special Issues, Collections and Topics in MDPI journals
Dr. Stephan Verweij

E-Mail Website
Guest Editor
Department of Pulmonology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM Nieuwegein, The Netherlands
Interests: Chlamydia; Chlamydia trachomatis infections; infectious disease; immunogenetics; pulmonary infection; lung transplantation

Special Issue Information

Dear Colleagues,

Members of the Chlamydiales order are remarkably diverse, and include species pathogenic for humans, animals and the environment. Human-pathogenic species generally cause ocular, pulmonary or urogenital infection, and due to the mostly asymptomatic clinical presentation cause major morbidity due to the development of late sequelae, which is especially the case for Chlamydia trachomatis. Several species infecting animals have zoonotic potential and thus pose a risk for public health. The incidence of infection among both humans and animals remains high, warranting an integrated scientific and clinical approach for aiding in the development of primary preventive measures.

This Special Issue will gather relevant studies ranging from basic research to translational, clinical or epidemiological studies, in relation to human ocular, pulmonary and urogenital Chlamydiae and Chlamydia-like infection, as well as animal infections and zoonotic infections. We invite you to submit your contribution to this Special Issue (original research papers, reviews, case reports/case series, valorization studies, policy manuscripts, or large funded study designs) to further our understanding of Chlamydiae and Chlamydia-like infections in humans, animals and the environment.

Prof. Dr. Servaas A. Morré
Dr. Stephan Verweij
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Microorganisms is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Chlamydiales
  • Chlamydia infection
  • molecular and cell biology
  • genetics and genomics
  • host–pathogen interaction
  • diagnostics
  • vaccine development
  • epidemiology
  • prevention and policy
  • zoonosis
  • Chlamydia-like
  • model systems to study Chlamydiae and Chlamydia-like infections

Published Papers (1 paper)

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Research

8 pages, 245 KiB  
Communication
Challenges in Chlamydial Serology: Insights from a Belgian and a Dutch Population Cohort
by Anne De Meyst, Zoïe Alexiou, Tinne Lernout, Servaas A. Morré and Daisy Vanrompay
Microorganisms 2024, 12(4), 658; https://0-doi-org.brum.beds.ac.uk/10.3390/microorganisms12040658 - 26 Mar 2024
Viewed by 527
Abstract
Serology routinely serves as a diagnostic tool to confirm Chlamydia infections in humans. Particularly in delayed settings, such as post-outbreak scenarios where the acute phase of infection has subsided, serology is invaluable. Multiple studies, nonetheless, indicate deficiencies in specificity and sensitivity of current [...] Read more.
Serology routinely serves as a diagnostic tool to confirm Chlamydia infections in humans. Particularly in delayed settings, such as post-outbreak scenarios where the acute phase of infection has subsided, serology is invaluable. Multiple studies, nonetheless, indicate deficiencies in specificity and sensitivity of current chlamydial antibody detection assays. Incorporation of multiple antigens per target is known to improve the accuracy of chlamydial serological assays. We, therefore, used the recomLine test (Mikrogen diagnostics) on serological samples of two cohorts, as it is the only commercially available test allowing detection of antibodies against three human pathogenic Chlamydia species (C. trachomatis, C. pneumoniae and C. psittaci) using multiple antigens per target. The first cohort (n = 156; samples collected between 2008 and 2022 during a C. trachomatis screening initiative) comprised women from the Netherlands (NL) with past exposure to C. trachomatis, while the second cohort (n = 44; samples collected in 2018 in a health examination survey) consisted of Belgian citizens (BE) with occupational or recreational exposure to chickens, representing a risk population for C. psittaci. The test indicated a statistically equivalent C. pneumoniae seroprevalence in both cohorts (39.10% in NL and 34.09% in BE; p = 0.337). As expected C. trachomatis seroprevalence was significantly higher (p < 0.001) in the Dutch cohort (48.72%), as compared to the Belgian cohort (4.55%). Lastly, C. psittaci seroprevalence did not significantly differ between the two groups (2.27% in BE and 1.92% in NL; p = 0.633), even though a higher prevalence was expected for the Belgian cohort. This prompts us to question whether the Belgian cohort truly constituted a C. psittaci risk population or whether the recomLine test is susceptible to cross-reaction of species-specific antibodies, thereby increasing C. psittaci prevalence in the Dutch cohort. We advocate for the development of affordable, highly sensitive antibody detection assays that can effectively distinguish between chlamydial species, addressing the increasing demand for enhanced serological testing methodologies. Full article
(This article belongs to the Special Issue Chlamydiae and Chlamydia-Like Infections)
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