Molecular prevalence and genotyping of &lt;i&gt;Chlamydia&lt;/i&gt; spp. in wild birds from South Korea

Jeong, Junhui; I, An; Jk, Oem; Sj, Wang; Kim, Yonggyun; Jh, Shin; Woo, Chanjin; Sd, Jo; Son, Kyu-Yeol; S, Lee; Jheong, Weon-Hwa

doi:10.1292/jvms.16-0516

Cited by 18 publications

(26 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The mean Cq value in the Chlamydiaceae qPCR in these birds was 29.1 with values ranging from 14.1–38.3, thus suggesting that the bacteria in samples with low Cq values may have been actively replicating, and the positive result was not only due to residual bacteria from infected prey. Further, ompA genotyping revealed that one common buzzard harbored C. psittaci genotype 1V, a C. psittaci / C. abortus intermediate that has a host preference for corvids [ 10 , 34 , 39 ]. As all samples were found negative for C. buteonis using species-specific qPCR, it remains unknown whether this recently described chlamydial species does occur in raptors in Switzerland.…”

Section: Discussionmentioning

confidence: 99%

“…Further, ompA genotyping revealed that one common buzzard harbored C. psittaci genotype 1V, a C. psittaci/C. abortus intermediate that has a host preference for corvids [10,34,39]. As all samples were found negative for C. buteonis using species-specific qPCR, it remains unknown whether this recently described chlamydial species does occur in raptors in Switzerland.…”

Section: Raptorsmentioning

confidence: 99%

“…Genotypes 1V and 6N are considered to be intermediates between C. psittaci and C. abortus. [10,34,35]. Genotype D, which was detected in three carrion crows, has a known host preference for turkeys [36].…”

Section: Corvidsmentioning

confidence: 99%

See 2 more Smart Citations

Occurrence of Chlamydiaceae in Raptors and Crows in Switzerland

et al. 2020

View full text Add to dashboard Cite

Bacteria of the family Chlamydiaceae are globally disseminated and able to infect many bird species. So far, 11 species of Chlamydia have been detected in wild birds, and several studies found chlamydial strains classified as genetically intermediate between Chlamydia (C.) psittaci and C.abortus. Recently, a group of these intermediate strains was shown to form a separate species, i.e., C.buteonis. In the present study, 1128 samples from 341 raptors of 16 bird species and 253 corvids representing six species were examined using a stepwise diagnostic approach. Chlamydiaceae DNA was detected in 23.7% of the corvids and 5.9% of the raptors. In corvids, the most frequently detected Chlamydia species was C.psittaci of outer membrane protein A (ompA) genotype 1V, which is known to have a host preference for corvids. The most frequently detected ompA genotype in raptors was M56. Furthermore, one of the raptors harbored C.psittaci 1V, and two others carried genotype A. C.buteonis was not detected in the bird population investigated, so it remains unknown whether this species occurs in Switzerland. The infection rate of Chlamydiaceae in corvids was high compared to rates reported in other wild bird species, but neither Chlamydiaceae-positive corvids nor raptors showed overt signs of disease. Since the Chlamydiaceae of both, raptors and crows were identified as C.psittaci and all C.psittaci genotypes are considered to be zoonotic, it can be suggested that raptors and crows pose a potential hazard to the health of their handlers.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Raptorsmentioning

confidence: 99%

See 1 more Smart Citation

Occurrence of Chlamydiaceae in Raptors and Crows in Switzerland

et al. 2020

View full text Add to dashboard Cite

show abstract

“…22 32 33 Genotype E, which was found in one fancy pigeon, infects a variety of avian species and is frequently found in pigeons worldwide. [34][35][36][37] Both genotypes are zoonotic, but human infection is mostly associated with genotype A causing a more severe course of disease. [38][39][40] Chlamydiaceae were not detected in any other bird order included in this study.…”

Section: Discussionmentioning

confidence: 99%

Detection of Chlamydiaceae in Swiss wild birds sampled at a bird rehabilitation centre

Stalder

Marti

Borel

et al. 2020

Veterinary Record Open

View full text Add to dashboard Cite

BackgroundAnnually, 800–1500 wild birds are admitted to the rehabilitation centre of the Swiss Ornithological Institute, Sempach, Lucerne, Switzerland. The workers of the centre come in close contact with the avian patients and might therefore be exposed to zoonotic agents shed by these birds, such as Chlamydia psittaci.MethodsIn the present study, 91 choanal, 91 cloacal and 267 faecal swabs from 339 wild birds of 42 species were investigated using a stepwise diagnostic approach.ResultsChlamydiaceae were detected in 0.9 per cent (0.3–2.6 per cent) of birds (n=3), all of them members of the Columbidae family. The Chlamydiaceae species of two of these birds (one Eurasian collared dove, one fancy pigeon) were identified as C psittaci types B and E by PCR and outer membrane protein A genotyping.ConclusionThe findings of the current study suggest that zoonotic transmission of Chlamydiaceae is very unlikely for songbird and waterfowl species tested herein, while pigeons might pose a risk to workers at rehabilitation centres.

show abstract

“…Ayrıca, kesin olmayan 1V, YP84, R54, 6N, CPX0308, I gibi alt genotipleri de vardır. Serotiplerde konak özgüllüğü vardır 8 . Serotip A esas olarak psitasin kuşlarından, serotip B esas olarak güvercinlerden, serotip C çoğunlukla ördeklerden ve kazlardan, serotip D çoğunlukla hindilerden, serotip E ise çoğunlukla güvercinlerden ve diğer kuşlardan izole edilir.…”

Section: Introductionunclassified