云南省昆明市动物园和宠物市场中鸟类鹦鹉热衣原体的流行病学调查及其基因型分布研究

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Bibliographic Details
Published in浙江大学学报：B卷英文版 Vol. 17; no. 4; pp. 311 - 316
Main Author Yue FENG Yue-mei FENG Zhong-hua ZHANG Shao-xiong WU Du-bo ZHONG Chen-jian LIU
Format Journal Article
LanguageEnglish
Published 2016
Subjects
OmpA基因
云南
基因型
流行病调查
鹦鹉热衣原体
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Bibliography:Chlamydia psittaci, Genotype, OmpA, Prevalence, Yunnan
Chlamydia psittaci is an important zoonotic pathogen in birds and may be transmitted to humans and result in severe respiratory disease. To assess the prevalence and genotype of C. psittaci in birds in Kunming, Yunnan, China, a total of 136 specimens of psittacine birds involving 8 species were collected from the city＇s zoos （n=60） and pet markets （n=76）. The frequency of C. psittaci infection was 19.9% （27/136） in the psittacine birds. The prevalence of C. psittaci was higher in pet birds （26.3%; 20/76） than in zoo birds （11.7%; 7/60） （P=0.034）. In particular, among Agapornis fischeri, the C. psittaci infection （50%; 10/20） was significantly more frequent in the pet markets than in the zoos （P=-0.006）. In addition, the highest prevalence of 41.2% （7/17） was found in Ara ararauna. To determine the genotype of C. psittaci, 23 OmpA gene fragments （about 1.4 kb） in 27 positive samples were successfully amplified and sequenced. Phylogenetic analysis showed that all the 23 strains belonged to genotype A. Our results demonstrate the high prevalence of C. psittaci genotype A infection in psittacine birds in Yunnan Province, suggesting a potential threat to human health in this area. Therefore, it is necessary to take effective measures to prevent the spread of C. psittaci among psittacine birds, as well as among employees and customers.
33-1356/Q
ISSN:1673-1581
1862-1783