Alves Larissa, Lima Jaqueline, Melo Jade, de Castro Ana Maria, Soares Vando, Rossi Gabriel, Teixeira Weslen, Ferreira Lorena, Cruz Breno, Felippelli Gustavo, Oliveira Vanessa, Brom Paula, Krawczak Felipe, da Costa Alvimar José, Lopes Welber
Escola de Veterinária e Zootecnia - EVZ, Universidade Federal de Goiás - UFG, Goiânia, Goiás, Brazil.
Agência Goiana de Defesa Agropecuária - AGRODEFESA, Goiânia, Goiás, Brazil.
Trop Anim Health Prod. 2021 Jan 6;53(1):76. doi: 10.1007/s11250-020-02495-0.
The aim of the present study was to evaluate the spatial distribution of the prevalence of T. gondii in cows using the indirect immunofluorescence assay and determine associated risk factors. Serum samples were collected from 2970 cows on 263 rural farms in 223 municipalities. A questionnaire was administered to herd owners to collect data for the evaluation of risk factors associated with this disease. Mean seroprevalence of T. gondii in cows was 8.48% (95% CI: 7.48 to 9.49). The microregions with the greatest likelihood (p ≤ 0.05) of having infected animals were Anápolis, Ceres, São Miguel do Araguaia, the Federal District, Anicuns, and Vão do Paraná. The purchase of females or males for reproductive/breeding purposes was significantly associated (p ≤ 0.05) with the prevalence of T. gondii in these regions. A positive correlation (0.7618; p = 0.047) was found between the prevalence of T. gondii and total area in hectares of forests in these regions, suggesting that wild cats may be disseminating T. gondii at these sites. The present results highlight the importance of considering the meat from these animals to be an important infection route for humans who eat raw or undercooked food.
本研究的目的是使用间接免疫荧光法评估奶牛弓形虫感染率的空间分布，并确定相关风险因素。从223个市263个乡村农场的2970头奶牛采集血清样本。向畜主发放问卷，收集数据以评估与该病相关的风险因素。奶牛弓形虫平均血清阳性率为8.48%（95%置信区间：7.48至9.49）。感染动物可能性最大（p≤0.05）的微区域为阿纳波利斯、塞雷斯、圣米格尔-杜阿拉瓜亚、联邦区、阿尼昆斯和巴拉那谷地。在这些地区，为繁殖目的购买雌性或雄性动物与弓形虫感染率显著相关（p≤0.05）。在这些地区，弓形虫感染率与森林公顷总面积之间存在正相关（0.7618；p = 0.047），这表明野猫可能在这些地点传播弓形虫。目前的结果凸显了将这些动物的肉视为食用生的或未煮熟食物的人类的重要感染途径的重要性。
