中国西北地区市场销售的成年鸡、鸭和鸽子中弓形虫感染的首次报告。
First report of Toxoplasma gondii infection in market-sold adult chickens, ducks and pigeons in northwest China.
机构信息
State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, People's Republic of China.
出版信息
Parasit Vectors. 2012 Jun 7;5:110. doi: 10.1186/1756-3305-5-110.
BACKGROUND
Toxoplasma gondii infection is a global concern, affecting a wide range of warm-blooded animals and humans worldwide, including poultry. Domestic and companion birds are considered to play an important role in the transmission of T. gondii to humans and other animals. However, little information on T. gondii infection in domestic birds in Lanzhou, northwest China was available. Therefore, this study was performed to determine the seroprevalence of T. gondii infection in domestic birds in Lanzhou, northwest China.
METHODS
In the present study, the seroprevalence of T. gondii antibodies in 413 (305 caged and 108 free-range) adult chickens, 334 (111 caged and 223 free-range) adult ducks and 312 adult pigeons in Lanzhou, northwest China, were examined using the modified agglutination test (MAT).
RESULTS
30 (7.26%) chickens, 38 (11.38%) ducks and 37 (11.86%) pigeons were found to be positive for T. gondii antibodies at the cut-off of 1:5. The prevalences in caged and free-range chickens were 6.23% and 10.19% respectively, however, statistical analysis showed that the difference was not significant (P > 0.05). The seroprevalences in caged and free-range ducks were 6.31% and 13.90% respectively, but the difference was not statistically significant (P > 0.05).
CONCLUSIONS
The results of the present survey indicated the presence of T. gondii infection in adult chickens, ducks and pigeons sold for meat in poultry markets in Lanzhou, northwest China, which poses a potential risk for T. gondii infection in humans and other animals in this region. This is the first seroprevalence study of T. gondii infection in domestic birds in this region.
背景
刚地弓形虫感染是一个全球性问题，影响着全球范围内广泛的温血动物和人类，包括家禽。家养和宠物鸟类被认为在弓形虫向人类和其他动物传播中起着重要作用。然而，关于中国西北兰州的家养鸟类的弓形虫感染情况，信息较少。因此，本研究旨在确定中国西北兰州的家养鸟类的弓形虫感染血清流行率。
方法
本研究采用改良凝集试验（MAT）检测了 413 只（305 只笼养和 108 只散养）成年鸡、334 只（111 只笼养和 223 只散养）成年鸭和 312 只成年鸽子的弓形虫抗体血清流行率。
结果
30 只（7.26%）鸡、38 只（11.38%）鸭和 37 只（11.86%）鸽的抗体滴度在 1：5 的截断值以上呈阳性。笼养鸡和散养鸡的流行率分别为 6.23%和 10.19%，但统计学分析显示差异无统计学意义（P>0.05）。笼养鸭和散养鸭的流行率分别为 6.31%和 13.90%，但差异无统计学意义（P>0.05）。
结论
本调查结果表明，在中国西北兰州的家禽市场出售的肉用成年鸡、鸭和鸽中存在弓形虫感染，这对该地区人类和其他动物的弓形虫感染构成了潜在风险。这是该地区首次对家养鸟类的弓形虫感染进行血清流行率研究。
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