Guimarães Luciana Afonso, Bezerra Rodrigo Alves, Rocha Daniele de Santana, Albuquerque George Rêgo
Programa de Pós-graduação em Ciência Animal, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil.
Rev Bras Parasitol Vet. 2013 Apr-Jun;22(2):220-4. doi: 10.1590/S1984-29612013000200041.
In this study, we aimed to determine the prevalence of Toxoplasma gondii antibodies and identify risk factors associated with this infection in sheep from the southern region of Bahia state. Between February and December 2010, 795 sheep from 31 farms located in nine municipalities were tested. We found seroprevalence of 30.2% (240/795), with titers of 64 (38.3%), 256 (34.2%), 1,024 (18.3%), and 4,096 (9.2%) by Indirect Fluorescent Antibody Test (IFAT). Seropositive sheep were detected in all farms sampled. Univariate statistical analysis detected association between T. gondii seropositivity and the variables age, use of fresh food mainly, water source, stocking rate, production system, presence and number of cats on the farm, and transit of cats (p < 0.05). In the logistic regression model, transit of cats (p = 0.001), production system (p = 0.007), and age (p = 0.027) were identified as risk factors associated with T. gondii infection.
在本研究中，我们旨在确定巴伊亚州南部地区绵羊弓形虫抗体的流行情况，并识别与这种感染相关的风险因素。在2010年2月至12月期间，对来自9个市31个农场的795只绵羊进行了检测。通过间接荧光抗体试验（IFAT），我们发现血清阳性率为30.2%（240/795），滴度为64的占38.3%，256的占34.2%，1024的占18.3%，4096的占9.2%。在所有采样农场中均检测到血清阳性绵羊。单变量统计分析发现，弓形虫血清阳性与年龄、主要使用新鲜食物、水源、饲养密度、生产系统、农场中猫的存在及数量以及猫的过境等变量之间存在关联（p<0.05）。在逻辑回归模型中，猫的过境（p = 0.001）、生产系统（p = 0.007）和年龄（p = 0.027）被确定为与弓形虫感染相关的风险因素。
