INRA, UR 346 Epidémiologie Animale, Theix, France.
Epidemiol Infect. 2010 Sep;138(9):1257-66. doi: 10.1017/S0950268810000117. Epub 2010 Jan 25.
Knowledge of the factors affecting the presence of Toxoplasma gondii in wildlife is limited. Here we analyse which local landscape characteristics are associated with the presence of toxoplasmosis in wild boar, Sus scrofa, on the island of Corsica, France. Meat juice samples from 1399 wild boars collected during two hunting seasons were tested for T. gondii antibodies using the modified agglutination test (titre 1:4). The overall seroprevalence was 0.55 (95% CI 0.50-0.59) for the first year and 0.33 (95% CI 0.29-0.35) for the second year. Seroprevalence varied according to age and county. At the county level, seropositivity in adults was related to farm density during year 1, and to habitat fragmentation, farm density and altitude during year 2. The exposure of wild boar to T. gondii is thus variable according to landscape characteristics and probably results in a variable risk of transmission of toxoplasmosis to humans.
有关影响野生动物中刚地弓形虫存在的因素的知识有限。在这里，我们分析了法国科西嘉岛野猪（Sus scrofa）中弓形虫病存在与哪些当地景观特征相关。在两个狩猎季节中，从 1399 只野猪中采集了肉汁样本，使用改良凝集试验（滴度 1：4）检测 T. gondii 抗体。第一年的总血清阳性率为 0.55（95%CI 0.50-0.59），第二年为 0.33（95%CI 0.29-0.35）。血清阳性率随年龄和县而变化。在县一级，成年猪的阳性率与第一年的农场密度有关，与第二年的生境破碎化、农场密度和海拔有关。因此，野猪接触刚地弓形虫的情况因景观特征而异，这可能导致弓形虫病向人类传播的风险也存在差异。
