Prevalence and Genetic Characterization of Toxoplasma gondii in House Sparrows (Passer domesticus) in Lanzhou, China

Wei Cong; Si-Yang Huang; Dong-Hui Zhou; Xiao-Xuan Zhang; Nian-Zhang Zhang; Quan Zhao; Xing-Quan Zhu

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자료유형: 학술저널

저자정보: Wei Cong (Chinese Academy of Agricultural Sciences) Si-Yang Huang (Chinese Academy of Agricultural Sciences) Dong-Hui Zhou (Chinese Academy of Agricultural Sciences) Xiao-Xuan Zhang (Chinese Academy of Agricultural Sciences) Nian-Zhang Zhang (Chinese Academy of Agricultural Sciences) Quan Zhao (Jilin Agricultural University) Xing-Quan Zhu (Chinese Academy of Agricultural Sciences)

저널정보: 대한기생충학열대의학회 Parasites, Hosts and Diseases The Korean Journal of Parasitology Vol.51 No.3

발행연도: 2013.6

수록면: 363 - 367 (5page)

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The prevalence of Toxoplasma gondii infection in birds has epidemiological significance because birds are indeed considered as a good indicator of environmental contamination by T. gondii oocysts. In this study, the prevalence of T. gondii in 313 house sparrows in Lanzhou, northwestern China was assayed by the modified agglutination test (MAT). Antibodies to T. gondii were positive in 39 (12.46%) of 313 samples (MAT titer ≥ 1:5). Tissues of heart, brain, and lung from the 39 seropositive house sparrows were tested for T. gondii DNA, 11 of which were found to be positive for the T. gondii B1 gene by PCR amplification. These positive DNA samples were typed at 9 genetic markers, including 8 nuclear loci, i.e., SAG1, 5´- and 3´-SAG2, alternative SAG2, SAG3, GRA6, L358, PK1, c22-8 and an apicoplast locus Apico. Of them, 4 isolates were genotyped with complete data for all loci, and 2 genotypes (Type II variants; ToxoDB #3 and a new genotype) were identified. These results showed that there is a potential risk for human infection with T. gondii in this region. To our knowledge, this is the first report of T. gondii seroprevalence in house sparrows in China.

#Toxoplasma gondii #sparrow #seroprevalence #PCR-RFLP typing #northwestern China

참고문헌 (31)

참고문헌 신청

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