Rodriguez Ines, Choromanski Leszek, Rodgers Sandra J, Weinstock Daniel
Animal Diagnostic Laboratory, Department of Veterinary Science, Pennsylvania State University, University Park, PA 16802, USA.
Vet Ther. 2002 Winter;3(4):396-401.
Serum samples from 4,907 cows from 93 dairy and five beef herds were analyzed for antibodies to Neospora caninum by commercially available ELISA. The herds were recruited from 20 states and the territory of Puerto Rico. A questionnaire assessed the herd's abortion history and exposure risks to N. caninum. Results showed that 788 (16%) cows tested positive for antibodies to N. caninum. At least one positive animal was detected in 90% of the herds tested. The prevalence of cows seropositive to N. caninum varied from 2% to 65% among herds. Abortion rates ranging from 2% to 19% were reported. The epidemiologic data collected from the questionnaire suggested that the presence of farm dogs does not increase the risk of exposure of cows to N. caninum.
采用市售酶联免疫吸附测定法（ELISA）对来自93个奶牛场和5个肉牛场的4907头奶牛的血清样本进行了犬新孢子虫抗体分析。这些牛群来自20个州和波多黎各地区。通过问卷调查评估了牛群的流产病史和犬新孢子虫暴露风险。结果显示，788头（16%）奶牛的犬新孢子虫抗体检测呈阳性。在90%的检测牛群中至少检测到一头阳性动物。各牛群中犬新孢子虫血清阳性奶牛的患病率在2%至65%之间。报告的流产率在2%至19%之间。从问卷调查收集的流行病学数据表明，农场养狗不会增加奶牛接触犬新孢子虫的风险。
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