Prevalence and genotype of Chlamydia psittaci in faecal samples of birds from zoos and pet markets in Kunming, Yunnan, China

Feng, Yue; Feng, Yuemei; Zhang, Zhonghua; Wu, Shaoxiong; Zhong, Du-bo; Liu, Chen‐Jian

doi:10.1631/jzus.b1500091

Cited by 16 publications

(20 citation statements)

References 17 publications

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“…In their study, C. psittaci was found by culture in 18% (7/39; 95% CI, 9% to 33%) of fecal samples, a prevalence that is lower than our results obtained by PCR. In a study by Feng et al (9), C. psittaci was detected in 27 out of 136 fresh fecal samples (19.9%) in psittacine birds using TaqMan MGB real-time PCR, which is a highly sensitive and specific technique for detecting chlamydial DNA.…”

Section: Discussionmentioning

confidence: 99%

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Prevalence Rate and Phylogenetic Analysis of Chlamydia psittaci in Pigeon and House Sparrow Specimens and the Potential Human Infection Risk in Chahrmahal-va-Bakhtiari, Iran

Mahzounieh

Moloudizargari

Abadi

et al. 2020

Arch Clin Infect Dis

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: Chlamydia psittaci (C. psittaci) is an important zoonotic pathogen in birds and has been reported from urban pigeons (Columba livia) and house sparrows (Passer domesticus) worldwide. Some public areas in Iran, such as parks, have a high density of these birds; thus, they may be regarded as a zoonotic threat to humans. The current study aimed at performing the prevalence assessment as well as the phylogenetic analysis of C. psittaci in cloacal swab samples from these birds. To this aim, a total of 75 specimens of urban pigeon, 75 specimens of the house sparrow, and 30 pharyngeal swabs of humans who work in pet-markets were collected from six different zones of Chaharmal-va-Bakhtiari, a Southwestern Province of Iran. The prevalence of C. psittaci was 25.3% (19 out of 75), 18.6% (14 out of 75), and 10% (3 out of 30) among the pigeon, sparrow and the human samples, respectively. The prevalence of C. psittaci was considerably high in urban pigeons. To determine the genotype of C. psittaci, OmpA gene fragments in positive samples were amplified and sequenced. Phylogenetic analysis revealed that strains from the pigeon and sparrow positive samples belonged to the genotypes B and A, while genotyping was unsuccessful for the positive human samples. Our findings suggest that the prevalence of C. psittaci in pigeons and sparrows is high in Chahrmahal-va-Bakhtiari posing as a potential infection risk to susceptible individuals in public places and parks. Therefore, it is essential to take effective measures for the implementation of proper control programs to prevent the possible infection of people with C. psittaci.

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Section: Discussionmentioning

confidence: 99%

“…Factors such as the chlamydial strain, immunity status of the host, concurrent or secondary infec-tions, as well as therapeutic management, can influence the severity of the clinical signs (7,8). Moreover, no vaccines or valid agents are available against C. psittaci, which makes it more complicated to deal with (7,9,10).…”

Section: Introductionmentioning

confidence: 99%

Prevalence Rate and Phylogenetic Analysis of Chlamydia psittaci in Pigeon and House Sparrow Specimens and the Potential Human Infection Risk in Chahrmahal-va-Bakhtiari, Iran

Mahzounieh

Moloudizargari

Abadi

et al. 2020

Arch Clin Infect Dis

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“…In addition, it showed high nucleotide homology (92.1%) with Iranian Strains Nose and UT245/AGP which was isolated from budgerigar and African grey parrot, respectively [42] in addition, homology with 90/1051 strain isolated from African grey parrot in Poland [43] was observed. Also, the nucleotide homology with the KMP09 strain isolated from psittacine birds in China was high (91.9%) [44]., While, nucleotide homology of 80.7% with UT78-Alexandria parakeet (HQ 845545) as genotype J was also reported [42].…”

Section: Embroynated Chicken Eggs Inoculated Withmentioning

confidence: 97%

Prevalence of Chlamydophila psittaci in some Wild and Pet Birds

El-Basrey¹,

Lebdah²,

Nassif³

et al. 2017

Zagazig Veterinary Journal

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Chlamydophila psittaci is one of the most important, zoonotic pathogen of birds causing chlamydiosis. This study aimed to investigate the frequency of infection by Cp. psittaci and to determine the genotype in birds at potential risk of exposure to this pathogen. In total four species of wild birds (50 native and 40 migratory quails, 30 doves and 25 tree sparrows) and four species of pet birds, (20 Budgerigars,10 cockatiels, 3 finches, 5 love birds) were examined for the presense of Chlamydophila psittaci using impression smears stained with Giemsa stain, smears from yolk sacs were stained with Gimenez stain and PCR . The results were (80%-100%) , (85%-100%) and (80%-100%) in pet birds followed by wild birds (64%-85%) , (76%-95%) and (80%-90%), respectivelly The pathogencity of three isolates by intratracheal route with 10 6 TCID/ml in 15 days old chickens and quails was done and showed that the more pathogenic strain for chickens and quails was the pet birds strain. The observed clinical signs were respiratory signs, conjunctivitis, and diarrhea, While the pathological changes were congestion in liver, lung, spleen, and pericarditis while mild clinical and pathological changes were observed post infection by tree sparrows and migratory quails isolates. The partial ompA gene sequence of isolated Cp. psittaci strain was placed in genotype A of Cp. psittaci which had the highest identity (91.9-94%) with previously similar described strains of genotype A. Pet and wild birds were the major reservoir for Cp. psittaci which shed in their excreta and expose human and native birds to high zoonotic risk.

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“…Araararauna revealed aprevalence of up to41.2%. A high prevalence of C. psittaci genotype A infection in psittacine birds was revealed by a genotype study, indicating a potential risk to human health [11]. Doxycycline, tetracycline, or enrofloxacin have been used successfully to treat or prevent psittacosis in birds [12,13].…”

Section: Chlamydophilosismentioning

confidence: 99%

Public Health Threats from Pet Bird Zoonoses

Nair

Anil

Sivaprasad

et al. 2022

JSRR

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The very high exotic or genetic value made pet birds, likecanaries, parakeets, and parrots a choice for trade across countries and continents, and the capability of these birds to act aspotential carriers or transmitters of zoonotic diseases contributes a significant threat to humans. Birds are characterized and known for their susceptibility, transmission, and maintenance of pathogens that are zoonotic to humans. Some of the zoonotic diseases they spread, such as highly pathogenic avian influenza (HPAI), salmonellosis, and chlamydophilosishave a significant impact on human health and these things make this issue a one health concern. Zoonotic diseases among birds areclassified as bacterial, viral, fungal, and of parasitic origin. The intensity with which they affect humans varies according to their pathogenicity and virulence. The awareness of pet bird zoonosesis of prime importance while trading or domesticating the bird, which will help to understand their potential fordiseases and install preventive measures accordingly. This review paper aims to educate readers about the risks faced by bird owners and the public by describing several instances of bird-human disease transmission and the characteristicsymptoms of those diseases.

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Prevalence and genotype of Chlamydia psittaci in faecal samples of birds from zoos and pet markets in Kunming, Yunnan, China

Cited by 16 publications

References 17 publications

Prevalence Rate and Phylogenetic Analysis of Chlamydia psittaci in Pigeon and House Sparrow Specimens and the Potential Human Infection Risk in Chahrmahal-va-Bakhtiari, Iran

Prevalence Rate and Phylogenetic Analysis of Chlamydia psittaci in Pigeon and House Sparrow Specimens and the Potential Human Infection Risk in Chahrmahal-va-Bakhtiari, Iran

Prevalence of Chlamydophila psittaci in some Wild and Pet Birds

Public Health Threats from Pet Bird Zoonoses

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