First Report of Chlamydiaceae Seroprevalence in Tibetan Pigs in Tibet, China

Zhang, Nian‐Zhang; Zhou, Dong‐Hui; Shi, Xiaoping; Nisbet, Alasdair J.; Huang, Si-Yang; Ciren, Danba; Wu, Song-Ming; Zhu, Xing‐Quan

doi:10.1089/vbz.2012.1208

Cited by 18 publications

(19 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Chlamydia seroprevalence in male and female domestic rabbit was 14.11% and 20.34%, respectively. This tendency is consistent with the studies of Tibetan pigs (females, 17.61%; males, 12.72%) [ 24 ] and also concurs with that observed in pet parrots (females, 41.22%; males, 30.06%) [ 14 ], in wild boars in Germany (females, 83.3%; males, 42.9%) [ 25 ] and Italy (females, 45.95%; males, 38.8%) [ 22 ]. Females and males were exposed to Chlamydia in the same environment, and in our study females are more sensitive to the pathogen than males for each of the breeds in each region group, which may be due to variation in immune response or antibody persistence rates between females and males.…”

Section: Discussionsupporting

confidence: 93%

Seroprevalence and Risk Factors ofChlamydiaInfection in Domestic Rabbits (Oryctolagus cuniculus) in China

Qin

Lou

et al. 2015

BioMed Research International

View full text Add to dashboard Cite

Chlamydia spp. are obligate intracellular bacteria distributed all over the world, known to cause various forms of diseases in animals and humans. In the present study, a serological survey was conducted to detect the seroprevalence and risk factors associated with rabbit chlamydiosis in northeast China, including Liaoning province, Jilin province, Heilongjiang province, and Inner Mongolia Autonomous Region. Antibodies to Chlamydia were determined by indirect hemagglutination assay (IHA). The overall seroprevalence was estimated at 17.88% in total of 800 blood samples. The Chlamydia seroprevalence varied in domestic rabbits from different factors, and genders of domestic rabbits were considered as major risk factors associated with Chlamydia infection. Our study revealed a widespread and high prevalence of Chlamydia infection in domestic rabbits in northeast China, with higher exposure risk in female domestic rabbits. These findings suggested the potential importance of domestic rabbits in the transmission of zoonotic Chlamydia infection, and thus Chlamydia should be taken into consideration in diagnosing rabbit diseases. To our knowledge, there is no report of Chlamydia infection in domestic rabbits in China and the results extend the host range for Chlamydia, which has important implications for public health and the local economy.

show abstract

Section: Discussionsupporting

confidence: 93%

Seroprevalence and Risk Factors ofChlamydiaInfection in Domestic Rabbits (Oryctolagus cuniculus) in China

Qin

Lou

et al. 2015

BioMed Research International

View full text Add to dashboard Cite

show abstract

“…Chlamydia seroprevalence in pigs, cattle, dogs, cats and humans has been widely reported throughout the world [8][9][10][11][12][13][14][15], but there is limited information about Chlamydia infection in parrots available, and no such information is available for parrots in China. In this survey, we investigated the seroprevalence of Chlamydia infection in budgerigars, lovebirds, cockatiels and Alexandrine parakeets in Beijing and Weifang cities, north China, and determined the genotype of Chlamydia shed in faeces from these popular pet birds.…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence and genotype of Chlamydia in pet parrots in China

Zhang

Zhou

et al. 2014

Epidemiol. Infect.

View full text Add to dashboard Cite

Parrots are one of the most popular pet birds in China, and can harbour Chlamydia which has significance for human and animal health. We investigated, by indirect haemagglutination assay, the seroprevalence of Chlamydia infection in four species of parrots, namely budgerigars (Melopsittacus undulatus), lovebirds (Agapornis sp.), cockatiels (Nymphicus hollandicus) and Alexandrine parakeets (Psittacula eupatria) that were collected from Weifang and Beijing cities, North China and explored the association between potential risk factors and chlamydial seropositivity. We further determined the genotype of Chlamydia in 21 fresh faecal samples based on the ompA sequence by reconstruction of phylogenetic relationships. Of the 311 parrots examined, 35·37% (95% confidence interval 30·06-40·68) were seropositive, and species, gender, age, season and geographical location were identified as risk factors. Two PCR-positive samples represented Chlamydia psittaci genotype A. The occurrence of C. psittaci genotype A in the droppings of two pet parrots in China suggests potential environmental contamination with Chlamydiaceae and may raise a public health concern.

show abstract

“…Another study indicated that 95 of 455 (20.9%) Tibetan sheep were seropositive for C. abortus antibodies at the cutoff of 1:16 [14], and the seroprevalence of Chlamydia infection in Tibetan pigs in Tibet was 16.63% between April and December 2010 [15]. Zhou et al reported that the overall seroprevalence of chlamydial infection in dairy cattle was 7.25% in Guangzhou [16].…”

Section: Introductionmentioning

confidence: 99%

Chlamydia felis exposure in companion dogs and cats in Lanzhou, China: a public health concern

Huang

et al. 2013

BMC Vet Res

Self Cite

View full text Add to dashboard Cite

BackgroundChlamydiaceae is a family of obligate intracellular pathogens with a worldwide distribution in many animal species, including humans. No information exists on the prevalence of Chlamydia felis infections in cats and dogs in Lanzhou, the geographical center of China. The aim of this study was to carry out a census of cats and dogs in Lanzhou and document the seroprevalence of C. felis exposure in these companion animals.ResultsIn this study, blood samples were collected from 485 animals (221 cats and 264 pet dogs) in Lanzhou between November 2010 and July 2011 to identify antibodies against C. felis. Thirteen of 221 (5.9%) cats and 32 of 264 (12.1%) pet dogs were positive for C. felis infection using indirect hemagglutination at a cutoff of 1:16. The seroprevalence in household and stray cats was 3.9% and 14.3%, respectively, and the difference was statistically significant (P < 0.05). Among different age groups, the seroprevalence in cats varied from 1.9 to 7.9%, and that in dogs ranged from 9.6 to 20.4%; however, the differences were not statistically significant (P > 0.05).ConclusionsThis is the first report of the seroprevalence of C. felis exposure in cats and dogs in Lanzhou, northwestern China. Our results indicate that the presence of C. felis exposure in cats and dogs may pose a potential threat to human health.

show abstract

First Report of Chlamydiaceae Seroprevalence in Tibetan Pigs in Tibet, China

Cited by 18 publications

References 16 publications

Seroprevalence and Risk Factors ofChlamydiaInfection in Domestic Rabbits (Oryctolagus cuniculus) in China

Seroprevalence and Risk Factors ofChlamydiaInfection in Domestic Rabbits (Oryctolagus cuniculus) in China

Seroprevalence and genotype of Chlamydia in pet parrots in China

Chlamydia felis exposure in companion dogs and cats in Lanzhou, China: a public health concern

Contact Info

Product

Resources

About