Evidence map›Paper›PMID 34312716›Full record

ReviewTropical animal health and production2021

A comprehensive review on avian chlamydiosis: a neglected zoonotic disease.

Karthikeyan Ravichandran, Subbaiyan Anbazhagan, Kumaragurubaran Karthik, Madesh Angappan, Balusamy Dhayananth

Open access · bronzeAbstract readReview
In one paragraph

Review in Tropical animal health and production, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 2 pooled it
7.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 2 syntheses or guidelines pooled it, 74 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Chlamydia psittaci Meningitis, Chile, 2023.Emerging infectious diseases · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Clinical Features of 186 Cases ofInfection and drug resistance · 2026
    Article
  8. Article
  9. Long-Term Surveillance ofMicroorganisms · 2025
    Article
  10. Complete genomes of twoMicrobiology resource announcements · 2025
    Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Chlamydia in farms located in the Argentine-Brazilian-Paraguay tri-border.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025
    Article
  16. Community-AcquiredCase reports in infectious diseases · 2025
    Article
  17. Article
  18. Article
  19. Zoonotic potential ofFrontiers in veterinary science · 2025
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Karthikeyan RavichandranDivision of Public Health and Epidemiology, ICAR-Indian Veterinary Research Institute, Izatnagar, India. karthi6162@gmail.com.ORCID http://orcid.org/0000-0002-9168-0405
Subbaiyan AnbazhaganDivision of Bacteriology and Mycology, ICAR-Indian Veterinary Research Institute, Izatnagar, India.
Kumaragurubaran KarthikCentral University Laboratory, Tamil Nadu Veterinary and Animal Sciences University, Chennai, India.
Madesh AngappanDivision of Public Health and Epidemiology, ICAR-Indian Veterinary Research Institute, Izatnagar, India.
Balusamy DhayananthDivision of Public Health and Epidemiology, ICAR-Indian Veterinary Research Institute, Izatnagar, India.
Indian Veterinary Research Institute · INTamil Nadu Veterinary and Animal Sciences University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Avian chlamydiosis is one of the important neglected diseases with critical zoonotic potential. Chlamydia psittaci, the causative agent, affects most categories of birds, livestock, companion animals, and humans. It has many obscured characters and epidemiological dimensions, which makes it unique among other bacterial agents. Recent reports on transmission from equine to humans alarmed the public health authorities, and it necessitates the importance of routine screening of this infectious disease. High prevalence of spill-over infection in equines was associated with reproductive losses. Newer avian chlamydial species are being reported in the recent years. It is a potential biological warfare agent and the disease is an occupational hazard mainly to custom officers handling exotic birds. Prevalence of the disease in wild birds, pet birds, and poultry causes economic losses to the poultry industry and the pet bird trade. Interestingly, there are speculations on the 'legal' and 'illegal' bird trade that may be the global source of some of the most virulent strains of this pathogen. The mortality rate generally ranges from 5 to 40% in untreated cases, but it can sometimes be higher in co-infection. The intracellular lifestyle of this pathogen makes the diagnosis more complicated and there is also lack of accurate diagnostics. Resistance to antibiotics is reported only in some pathogens of the Chlamydiaceae family, but routine screening may assess the actual situation in all pathogens. Due to the diverse nature of the pathogen, the organism necessitates the One Health partnerships to have complete understanding. The present review focuses on the zoonotic aspects of avian chlamydiosis with its new insights into the pathogenesis, transmission, treatment, prevention, and control strategies. The review also briefs on the basic understandings and complex epidemiology of avian chlamydiosis, highlighting the need for research on emerging one health perspectives.

Indexed as

Bird DiseasesHorse DiseasesPsittacosisAnimalsBirdsHorsesNeglected DiseasesZoonosesAvian chlamydiosisChlamydia psittaciElementary bodyEquine chlamydiosisMOMPOne HealthOrnithosisPsittacinePsittacosis

Identifiers

PMID34312716
PMCPMC8313243
OpenAlexW3184742120

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.