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  • Title: Seroprevalence of Toxoplasma gondii infection in pigs in Jiangxi Province, Southeastern China.
    Author: Jiang HH, Zhang WB, Zhao L, Zhou DH, Song HQ, Xu CM, Deng SZ, Zhu XQ.
    Journal: Foodborne Pathog Dis; 2014 May; 11(5):362-5. PubMed ID: 24552150.
    Abstract:
    Toxoplasma gondii is the causative agent of toxoplasmosis in humans and a wide range of animal species. In the current study, a serological investigation using an indirect hemagglutination (IHA) test was carried out to determine the seroprevalence of T. gondii infection in pigs in Jiangxi Province, southeastern China. A total of 1232 serum samples were collected from pigs in 10 administrative districts in Jiangxi, and specific antibodies were detected in 282 pigs (22.9%) with the titers ≥1:64. Positive pigs were found in each administrative district, with prevalence ranging from 5.0% to 46.2%. Age and season were found to be associated with T. gondii infection. Lactating sows (odds ratio [OR]=15.4, 95% confidence interval [CI]=6.8-35.2, p<0.01), pregnant sows (OR=11.5, 95% CI=5.3-24.8, p<0.01), nonpregnant sows (OR=13.7, 95% CI=6.4-29.3, p<0.01), breeding boars (OR=9, 95% CI=3.8-21.4, p<0.01), and fattening pigs (OR=4.9, 95% CI=2.1-11.7, p<0.01) all had a greater risk of acquiring infection compared to the weanling pigs. There is a higher risk of infection in the spring (OR=1.7, 95% CI=1.1-2.6, p=0.01) and the summer (OR=2.1, 95% CI=1.3-3.2, p<0.01) than in the winter. This is the first documentation of T. gondii seroprevalence in pigs in Jiangxi Province, which enriches the epidemiological data of T. gondii infection in pigs in China. The results of this study indicate that pigs in Jiangxi Province are frequently exposed to T. gondii, posing a direct threat to the pig industry as well as to public health. Integrated strategies are needed to strengthen future prevention and control of T. gondii infection in pigs in this region.
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