Rodrigues Arlan Araújo, Reis Sara Silva, da Silva Moraes Elinalva, do Nascimento Souza Filho José Gracione, Dos Santos Reis Maria Helena, Martins Thais Agostinho, Bernardes Juliana Correa, Nino Beatriz De Souza Lima, Garcia João Luis, Nascimento Thiago Vinícius Costa, da Cunha Ivo Alexandre Leme
Applied Parasitology Laboratory, Agricultural and Environmental Sciences Center, Federal University of Maranhão, MA-230, KM 04, s/n° - Boa Vista, 65500-000 Chapadinha, Maranhão, Brazil.
Protozoology Laboratory, Department of Preventive Veterinary Medicine, State University of Londrina, Rodovia Celso Garcia Cid, Jardim Portal de Versalhes 1, 86057-970 Londrina, Paraná, Brazil.
Vet Parasitol Reg Stud Reports. 2021 Dec;26:100634. doi: 10.1016/j.vprsr.2021.100634. Epub 2021 Sep 9.
We estimated the seroprevalence and possible risk factors for neosporosis and toxoplasmosis in goats in the state of Maranhão, Brazil. In addition, the variables related to these animals and the management of the farm were investigated in terms of the significance of the associations. In total, 383 serum samples from goats, of both sexes and different ages, were collected from 15 farms in four municipalities. The indirect immunofluorescence test was used for antibody detection against Neospora caninum and Toxoplasma gondii. The overall seroprevalence of N. caninum in goats was 26.4% (101/382; IC 95% 22.3-31.1), and 114 out of 383 serum samples were T. gondii-seropositive (29.8%, IC 95% 25.4-34.5). In addition, the seroprevalence of coinfection of T. gondii and N. caninum in goats was 8.6% (33/382; IC 95% 6.2-11.8). The risk factors significantly associated with the seroprevalence of N. caninum were age, type of sheepfold floor, rearing system, feeding, pasture area cultivated, cats having access to the feed deposits, worming, slaughter place of the animals, history of abortion and the presence of dogs and cats. Regarding the seroprevalence of T. gondii infection, age, category, presence of other species and purpose of breeding were the risk factors. To our knowledge, this is the first report of the seroprevalence and risk factors for N. caninum and T. gondii in goats in the state of Maranhão, Brazil, which provides basic data for the implementation of strategies and control measures against neosporosis and toxoplasmosis.
我们估算了巴西马拉尼昂州山羊新孢子虫病和弓形虫病的血清阳性率及可能的风险因素。此外，还就这些动物相关变量及养殖场管理情况在关联意义方面展开了调查。总共从四个市的15个养殖场采集了383份不同性别和年龄的山羊血清样本。采用间接免疫荧光试验检测针对犬新孢子虫和刚地弓形虫的抗体。山羊中犬新孢子虫的总体血清阳性率为26.4%（101/382；95%置信区间22.3 - 31.1），383份血清样本中有114份弓形虫血清阳性（29.8%，95%置信区间25.4 - 34.5）。此外，山羊中弓形虫和犬新孢子虫混合感染的血清阳性率为8.6%（33/382；95%置信区间6.2 - 11.8）。与犬新孢子虫血清阳性率显著相关的风险因素有年龄、羊圈地面类型、饲养系统、饲料、种植的牧场面积、猫能否接触饲料储存处、驱虫、动物屠宰地点、流产史以及犬猫的存在情况。对于弓形虫感染的血清阳性率，年龄、类别、其他物种的存在情况和养殖目的是风险因素。据我们所知，这是巴西马拉尼昂州山羊中犬新孢子虫和弓形虫血清阳性率及风险因素的首次报告，为实施针对新孢子虫病和弓形虫病的策略及控制措施提供了基础数据。
