Seroprevalence, risk factors and genetic characterization of Toxoplasma gondii in free-range white yaks (Bos grunniens) in China

被引：21
|
作者：
Qin, S. Y. [1 ,2 ]
Zhou, D. H. [1 ]
Cong, W. [1 ,2 ]
Zhang, X. X. [1 ,2 ]
Lou, Z. L. [1 ,2 ]
Yin, M. Y. [1 ,3 ]
Tan, Q. D. [1 ,4 ]
Zhu, X. Q. [1 ,2 ]
机构：
[1] Chinese Acad Agr Sci, Lanzhou Vet Res Inst, State Key Lab Vet Etiol Biol, Key Lab Vet Parasitol Gansu Prov, Lanzhou 730046, Gansu, Peoples R China
[2] Jilin Agr Univ, Coll Anim Sci & Technol, Changchun 130118, Jilin Province, Peoples R China
[3] Hunan Agr Univ, Coll Vet Med, Changsha 410128, Hunan, Peoples R China
[4] Anhui Agr Univ, Coll Anim Sci & Technol, Hefei 230000, Anhui, Peoples R China
来源：
VETERINARY PARASITOLOGY | 2015年 / 211卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
Toxoplasma gondii; Seroprevalence; Risk factors; Genotype; White yak; Modified agglutination test (MAT); INFECTION; PREVALENCE; QINGHAI; BATS;
D O I：
10.1016/j.vetpar.2015.05.015
中图分类号：
R38 [医学寄生虫学]; Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ; 100103 ;
摘要：
The objective of this study was to determine the seroprevalence, risk factors and genotypes of Toxoplasma gondii in white yaks (Bos grunniens) in China. A total of 974 serum samples were collected from white yaks in Tianzhu Tibetan Autonomous County (TTAC), Gansu province, northwest China for detecting T. gondii antibodies by the modified agglutination test (MAT), and 414 tissues belonging to 138 white yaks were collected for detecting T. gondii DNA by amplification of B1 gene with a semi-nested PCR. A total of 155 serum samples (15.91%) were seropositive for T. gondii antibodies at a 1:100 cut-off, and 10 DNA samples (7.25%) were positive for the T. gondii B1 gene, which were genetically characterized using multilocus PCR-RFLP. Only one genotype (ToxoDB#9) was identified from two samples with complete genotyping results. Statistically significant differences were not observed between T. gondii seroprevalence and gender, season or pregnancy in the logistic regression analysis (P > 0.05). Ages of white yaks was considered as a main risk factor associated with T. gondii infection. Our results indicated a widespread exposure to T. gondii among white yaks, and revealed the genotype ToxoDB#9 of T. gondii in white yaks for the first time in China. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：300 / 302
页数：3
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