Seroprevalence and risk factors of Chlamydia psittaci infection in domestic geese Anser domestica, in Hainan province of China

Zhao, Junlong; Rong, Guang; Zhou, Hanlin; Hou, Guanyu

doi:10.1016/j.actatropica.2015.02.007

Cited by 7 publications

(3 citation statements)

References 23 publications

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“…) and domestic geese (Zhao et al . ). Furthermore, recent evidence suggested that psittacine birds can also be infected by other chlamydia species, such as C. abortus , C. trachomatis , C. suis and C. muridarum (Pantchev et al .…”

Section: Introductionmentioning

confidence: 97%

Risk factors associated withChlamydia psittaciinfections in psittacine birds and bird handlers

2018

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Aims: The aim of this study was to determine the prevalence and potential risk factors associated with Chlamydia psittaci infections in psittacine birds and bird handlers in Egypt. Methods and Results: A total of 190 swabs were collected from psittacine birds (n = 120) and bird handlers (n = 70) and were tested by polymerase chain reaction to detect the C. psittaci ompA gene. Chlamydia psittaci DNA was detected in 63 (52Á5%) of 120 samples collected from psittacine birds. The occurrence of C. psittaci infections was high in Cockatiel birds (60%), followed by Fischer's lovebird (51%) and Rosy-faced lovebird (47Á5%). Bird age, location (pet markets and households), housing (caged and aviary), and sampling season were considered significant risk factors for C. psittaci infections in psittacine birds. Of the 70 sputum swabs collected from bird handlers, only 4 (6%) were positive for C. psittaci. Positive cases were closely associated with older persons (≥30 years) who had respiratory signs and handled birds in pet markets. Further, wearing protective gloves and washing hands when handling psittacine birds decreased the frequency of C. psittaci infections in bird handlers. Conclusions: The prevalence of C. psittaci infections in psittacine birds in Egypt is high, which has a potential threat to human health in this area. Thus, dissemination of effective prevention and control measures is essential to prevent the spread of C. psittaci among psittacine birds, as well as among humans in contact with birds. Significance and Impact of the Study: Results from this study highlighted the risk factors associated with C. psittaci infections in psittacine birds and bird handlers in Egypt and will aid in developing prevention and control measures to reduce the risk of C. psittaci infection.

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Section: Introductionmentioning

confidence: 97%

Risk factors associated withChlamydia psittaciinfections in psittacine birds and bird handlers

2018

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“…As currently available data on chlamydial infections of domestic birds in China are confined only to three recent reports on C. psittaci in poultry 15 16 17 , this study was undertaken to explore the occurrence of individual chlamydial species in domestic birds, as well as to address the pathogenicity of C. gallinacea .…”

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confidence: 99%

Chlamydia gallinacea, not C. psittaci, is the endemic chlamydial species in chicken (Gallus gallus)

Guo

Kaltenboeck

et al. 2016

Sci Rep

141

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To investigate the prevalence and diversity of Chlamydia spp. in domestic birds in China, oral and cloacal swabs of healthy chickens, ducks, geese and pigeons were collected nationwide from live-animal markets and examined by Chlamydia spp. 23 S rRNA gene FRET-PCR followed by high-resolution melting curve analysis and confirmatory sequencing. Overall, 26.2% of the birds (602/2,300) were positive for Chlamydia spp. and five Chlamydia spp. were identified. While occasional detection of C. suis and C. muridarum in poultry is reported here for the first time, the predominant chlamydial agent was C. gallinacea representing 63.8% of all positives (384/602) and 81.2% of positive chickens (359/442). Analysis of the C. gallinacea ompA phylogeny revealed at least 13 well segregated variants (serovars). Seven-month monitoring of C. gallinacea-infected chickens indicated that the infection was persistent. C. gallinacea-infected chickens remained without overt clinical disease, but showed body weight gains significantly reduced by 6.5–11.4% beginning in week 3 post-infection. This study indicates that C. gallinacea is the endemic chlamydial species in chickens, whereas C. psittaci dominates only in pigeons. Further studies are required to address the specific conditions under which C. gallinacea could act as an avian pathogen and possibly also a zoonotic agent.

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“…C. psittaci has been known for decades as the causative agent of avian chlamydiosis in psittacine birds and humans ( Andersen, 1991 ; Geigenfeind and Haag-Wackernagel, 2010 ). Recent research has reported C. psittaci infections in turkeys, ducks, pigeons, and geese ( Van Loock et al, 2005 ; Cong et al, 2013 ; Ling et al, 2015 ; Zhao et al, 2015 ). In the bacterial culture isolated from the fecal sample, Shigella was found; however, due to the limitations of traditional culture methods, we were unable to isolate Chlamydia .…”

Section: Discussionmentioning

confidence: 99%

Analysis of microbial diversity in the feces of Arborophila rufipectus

Li²,

Chen³

et al. 2023

Front. Microbiol.

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IntroductionIntestinal microbiota composition plays a crucial role in modulating the health of the host. This evaluation indicator is very sensitive and profoundly impacts the protection of endangered species. Currently, information on the gut microbiota of wild birds remains scarce. Therefore, this study aimed to describe the gut microbial community structure and potentially, the pathogen composition of wild Arborophila rufipectus.MethodsTo guarantee comprehensive data analysis, we collected fecal samples from wild A. rufipectus and Lophura nycthemera in their habitats for two quarters. The 16S rRNA gene was then sequenced using high-throughput sequencing technology to examine the intestinal core microbiota, microbial diversity, and potential pathogens with the aim of determining if the composition of the intestinal microflora varies seasonally.Results and DiscussionThe gut microbiota of A. rufipectus and L. nycthemera primarily comprised four phyla: Proteobacteria (45.98%), Firmicutes (35.65%), Bacteroidetes (11.77%), and Actinobacteria (3.48%), which accounted for 96.88% of the total microbial composition in all samples. At the genus level, core microorganisms were found, including Shigella (10.38%), Clostridium (6.16%), Pseudomonas (3.03%), and Rickettsiella (1.99%). In these genera, certain microbial species have been shown to be pathogenic. This study provides important indicators for analyzing the health status of A. rufipectus and formulating protective measures.

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Seroprevalence and risk factors of Chlamydia psittaci infection in domestic geese Anser domestica, in Hainan province of China

Cited by 7 publications

References 23 publications

Risk factors associated withChlamydia psittaciinfections in psittacine birds and bird handlers

Risk factors associated withChlamydia psittaciinfections in psittacine birds and bird handlers

Chlamydia gallinacea, not C. psittaci, is the endemic chlamydial species in chicken (Gallus gallus)

Analysis of microbial diversity in the feces of Arborophila rufipectus

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