Moore D P, Pérez A, Agliano S, Brace M, Cantón G, Cano D, Leunda M R, Odeón A C, Odriozola E, Campero C M
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CP C1033AAJ, Buenos Aires, Argentina.
Vet Parasitol. 2009 Apr 6;161(1-2):122-5. doi: 10.1016/j.vetpar.2009.01.003. Epub 2009 Jan 17.
From 2003 through 2007, serum samples from 5594 dairy and beef heifers and cows in Argentina were assessed to quantify the association between presence of Neospora caninum antibodies and history of abortion, type of exploitation, and age category of animals. Animals with a history of abortion were 85% more likely (P<0.01) to be positive to N. caninum than animals without a record of abortion. For a given category (age) of animals, being in a dairy operation increased the odds of being N. caninum-positive. Replacement dairy heifers were 76% more likely (P<0.01) to be N. caninum-positive than beef cows. These results suggest that postnatal exposure may be more frequent in dairy operations than in beef herds and provide insight into the epidemiology of the disease in one of the most important livestock production regions of the world.
2003年至2007年期间，对阿根廷5594头奶牛和肉牛小母牛及母牛的血清样本进行了评估，以量化犬新孢子虫抗体的存在与流产史、养殖类型和动物年龄类别之间的关联。有流产史的动物感染犬新孢子虫呈阳性的可能性比没有流产记录的动物高85%（P<0.01）。对于给定年龄类别的动物，从事奶牛养殖会增加犬新孢子虫检测呈阳性的几率。后备奶牛小母牛感染犬新孢子虫呈阳性的可能性比肉牛母牛高76%（P<0.01）。这些结果表明，产后暴露在奶牛养殖中可能比肉牛群中更频繁，并为世界上最重要的畜牧生产地区之一的该疾病流行病学提供了见解。
