ArticlePloS one2017
Dissemination and genetic diversity of chlamydial agents in Polish wildfowl: Isolation and molecular characterisation of avian Chlamydia abortus strains.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed, 91 citations in OpenAlex.
- Long-Term Surveillance ofMicroorganisms · 2025Article
- Prevalence and Genetic Characteristics of Avian Chlamydia in Birds in Guangxi, Southwestern China.Microorganisms · 2025Article
- Molecular detection and characterization of Chlamydiaceae from seagulls associated to anthropogenic environments in Argentina.Veterinary research communications · 2025Article
- Development of shuttle vector-based transformation systems for veterinary and zoonotic chlamydiae.Microbiology spectrum · 2025Article
- Molecular Survey of Chlamydial Infections in Three Public Bird Collections in Tehran, Iran.Veterinary medicine and science · 2025Article
- Community-Acquired Pneumonia Caused by Avian Chlamydia abortus, the Netherlands.Emerging infectious diseases · 2025Article
- Limited transmission of avian influenza viruses, avulaviruses, coronaviruses and Chlamydia sp. at the interface between wild birds and a free-range duck farm.Veterinary research · 2025Article
- Review
- Chlamydiosis in Animals.Animals : an open access journal from MDPI · 2024Review
- Outbreak ofAnimals : an open access journal from MDPI · 2024Article
- Zoonotic and other veterinary chlamydiae - an update, the role of the plasmid and plasmid-mediated transformation.Pathogens and disease · 2024Review
- Belgian Cross-Sectional Epidemiological Study on Zoonotic AvianMicroorganisms · 2024Article
- New insight on chlamydiae.Journal of veterinary research · 2023Article
- Draft genomes of novel avianMicrobial genomics · 2023Article
- First detection of Chlamydia avium in healthy Amazon parrots (Amazona aestiva) in Argentina.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2023Article
- Three Cases of Atypical Pneumonia withPathogens (Basel, Switzerland) · 2022Article
- Chlamydia psittaci in Faecal Samples of Feral Pigeons (Columba livia forma urbana) in Urban Areas of Lublin city, Poland.Current microbiology · 2022Article
- Emerging and well-characterized chlamydial infections detected in a wide range of wild Australian birds.Transboundary and emerging diseases · 2022Article
- Prevalence of New and Established Avian Chlamydial Species in Humans and Their Psittacine Pet Birds in Belgium.Microorganisms · 2022Article
- Chlamydial species among wild birds and livestock in the foothills of Mt. Afadjato, Ghana.The Journal of veterinary medical science · 2022Article
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Authors and funding
12 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Wild birds are considered as a reservoir for avian chlamydiosis posing a potential infectious threat to domestic poultry and humans. Analysis of 894 cloacal or fecal swabs from free-living birds in Poland revealed an overall Chlamydiaceae prevalence of 14.8% (n = 132) with the highest prevalence noted in Anatidae (19.7%) and Corvidae (13.4%). Further testing conducted with species-specific real-time PCR showed that 65 samples (49.2%) were positive for C. psittaci whereas only one was positive for C. avium. To classify the non-identified chlamydial agents and to genotype the C. psittaci and C. avium-positive samples, specimens were subjected to ompA-PCR and sequencing (n = 83). The ompA-based NJ dendrogram revealed that only 23 out of 83 sequences were assigned to C. psittaci, in particular to four clades representing the previously described C. psittaci genotypes B, C, Mat116 and 1V. Whereas the 59 remaining sequences were assigned to two new clades named G1 and G2, each one including sequences recently obtained from chlamydiae detected in Swedish wetland birds. G1 (18 samples from Anatidae and Rallidae) grouped closely together with genotype 1V and in relative proximity to several C. abortus isolates, and G2 (41 samples from Anatidae and Corvidae) grouped closely to C. psittaci strains of the classical ABE cluster, Matt116 and M56. Finally, deep molecular analysis of four representative isolates of genotypes 1V, G1 and G2 based on 16S rRNA, IGS and partial 23S rRNA sequences as well as MLST clearly classify these isolates within the C. abortus species. Consequently, we propose an expansion of the C. abortus species to include not only the classical isolates of mammalian origin, but also avian isolates so far referred to as atypical C. psittaci or C. psittaci/C. abortus intermediates.
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